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John Boscardin, PhD

Title(s)Professor, Medicine
SchoolSchool of Medicine
Phone415-221-4810 ext. 23621
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    W. John Boscardin, Ph.D. is a biostatistician with a joint appointment as Professor of Medicine and Epidemiology & Biostatistics. His primary role with the Department of Medicine is as Director of the Statistical Laboratory for the Division of Geriatrics and for SFVAMC Health Services Research. The laboratory is comprised of six Master’s and Ph.D. level statisticians and provides data management, analytic support, and methodological input to more than a dozen principal investigators in geriatrics and health services. He is also one of the biostatistics faculty members for the CTSI K-Scholars Program based out of the Department of Epidemiology & Biostatistics, serving as statistical mentor to numerous junior investigators over the past several years. Dr. Boscardin received his Ph.D. in Statistics in 1996 from the University of California, Berkeley. He was a faculty member at UCLA in the Departments of Biostatistics and Medicine before moving to UCSF in 2008. His areas of methodological expertise include analysis of longitudinal and repeated measures data, treatment of missing data, Bayesian statistical modeling, and computational statistics. He has worked in a wide range of substantive areas including HIV/AIDS, brain injury, health disparities, diabetes, stroke, ageing and frailty, and scleroderma, with colleagues in a wide variety of disciplines, including geriatrics, psychology, psychiatry, pediatrics, ophthalmology, immunology, virology, gastroenterology, epidemiology, neuroimaging, neurosurgery, neuroscience, cardiology, health services, and rheumatism.

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    Publications listed below are automatically derived from MEDLINE/PubMed and other sources, which might result in incorrect or missing publications. Researchers can login to make corrections and additions, or contact us for help.
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    1. Franc BL, Thombley R, Luo Y, Boscardin WJ, Rugo HS, Seidenwurm D, Dudley RA. Identifying tests related to breast cancer care in claims data. Breast J. 2019 Nov 18. PMID: 31736191.
      View in: PubMed
    2. Barnes DE, Zhou J, Walker RL, Larson EB, Lee SJ, Boscardin WJ, Marcum ZA, Dublin S. Development and Validation of eRADAR: A Tool Using EHR Data to Detect Unrecognized Dementia. J Am Geriatr Soc. 2019 Oct 14. PMID: 31612463.
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    3. Oh A, Patel K, Boscardin WJ, Max W, Stephens C, Ritchie CS, Smith AK. Social Support and Patterns of Institutionalization Among Older Adults: A Longitudinal Study. J Am Geriatr Soc. 2019 Dec; 67(12):2622-2627. PMID: 31593295.
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    4. Jambusaria-Pahlajani A, Crow LD, Lowenstein S, Garrett GL, Melcher ML, Chan AW, Boscardin J, Arron ST. Predicting skin cancer in organ transplant recipients: development of the SUNTRAC screening tool using data from a multicenter cohort study. Transpl Int. 2019 Dec; 32(12):1259-1267. PMID: 31423648.
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    5. Yuan N, Dudley RA, Boscardin WJ, Lin GA. Electronic health records systems and hospital clinical performance: a study of nationwide hospital data. J Am Med Inform Assoc. 2019 Oct 01; 26(10):999-1009. PMID: 31233144.
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    6. Shi Y, Barnes DE, Boscardin J, You JJ, Heyland DK, Volow AM, Howard M, Sudore RL. Brief English and Spanish Survey Detects Change in Response to Advance Care Planning Interventions. J Pain Symptom Manage. 2019 Dec; 58(6):1068-1074.e5. PMID: 31539605.
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    7. Nouri SS, Barnes DE, Volow AM, McMahan RD, Kushel M, Jin C, Boscardin J, Sudore RL. Health Literacy Matters More Than Experience for Advance Care Planning Knowledge Among Older Adults. J Am Geriatr Soc. 2019 Oct; 67(10):2151-2156. PMID: 31424575.
      View in: PubMed
    8. Anderson TS, Jing B, Auerbach A, Wray CM, Lee S, Boscardin WJ, Fung K, Ngo S, Silvestrini M, Steinman MA. Clinical Outcomes After Intensifying Antihypertensive Medication Regimens Among Older Adults at Hospital Discharge. JAMA Intern Med. 2019 Aug 19. PMID: 31424475.
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    9. Amin KA, Lee UJ, Jin C, Boscardin J, Medendorp AR, Anger JT, Suskind AM. "A National Study Demonstrating the Need for Improved Frailty Indices for Preoperative Risk Assessment of Common Urologic Procedures". Urology. 2019 Oct; 132:87-93. PMID: 31302138.
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    10. Suskind AM, Kowalik C, Quanstrom K, Boscardin J, Zhao S, Reynolds WS, Mishra K, Finlayson E. The impact of frailty on treatment for overactive bladder in older adults. Neurourol Urodyn. 2019 Sep; 38(7):1915-1923. PMID: 31286561.
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    11. Gardner RC, Cheng J, Ferguson AR, Boylan R, Boscardin J, Zafonte RD, Manley GT. Divergent Six Month Functional Recovery Trajectories and Predictors after Traumatic Brain Injury: Novel Insights from the Citicoline Brain Injury Treatment Trial Study. J Neurotrauma. 2019 Sep 01; 36(17):2521-2532. PMID: 30909795.
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    12. Brown RT, Diaz-Ramirez LG, Boscardin WJ, Lee SJ, Williams BA, Steinman MA. Association of Functional Impairment in Middle Age With Hospitalization, Nursing Home Admission, and Death. JAMA Intern Med. 2019 May 01; 179(5):668-675. PMID: 30958504.
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    13. Tang VL, Dillon EC, Yang Y, Tai-Seale M, Boscardin J, Kata A, Sudore RL. Advance Care Planning in Older Adults With Multiple Chronic Conditions Undergoing High-Risk Surgery. JAMA Surg. 2019 03 01; 154(3):261-264. PMID: 30516794.
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    14. Wiener SV, Stoller ML, Boscardin J, Suskind AM. Factors Associated with Regional Adoption of Ureteroscopy in California from 2005 to 2016. J Endourol. 2019 01; 33(1):9-15. PMID: 30458114.
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    15. Whitlock EL, Diaz-Ramirez LG, Smith AK, Boscardin WJ, Avidan MS, Glymour MM. Cognitive Change After Cardiac Surgery Versus Cardiac Catheterization: A Population-Based Study. Ann Thorac Surg. 2019 04; 107(4):1119-1125. PMID: 30578068.
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    16. Marafino BJ, Park M, Davies JM, Thombley R, Luft HS, Sing DC, Kazi DS, DeJong C, Boscardin WJ, Dean ML, Dudley RA. Validation of Prediction Models for Critical Care Outcomes Using Natural Language Processing of Electronic Health Record Data. JAMA Netw Open. 2018 12 07; 1(8):e185097. PMID: 30646310.
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    17. Sudore RL, Schillinger D, Katen MT, Shi Y, Boscardin WJ, Osua S, Barnes DE. Engaging Diverse English- and Spanish-Speaking Older Adults in Advance Care Planning: The PREPARE Randomized Clinical Trial. JAMA Intern Med. 2018 12 01; 178(12):1616-1625. PMID: 30383086.
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    18. Tang V, Zhao S, Boscardin J, Sudore R, Covinsky K, Walter LC, Esserman L, Mukhtar R, Finlayson E. Functional Status and Survival After Breast Cancer Surgery in Nursing Home Residents. JAMA Surg. 2018 12 01; 153(12):1090-1096. PMID: 30167636.
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    19. Kotwal AA, Abdoler E, Diaz-Ramirez LG, Kelley AS, Ornstein KA, Boscardin WJ, Smith AK. 'Til Death Do Us Part: End-of-Life Experiences of Married Couples in a Nationally Representative Survey. J Am Geriatr Soc. 2018 12; 66(12):2360-2366. PMID: 30251423.
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    20. Barnes DE, Byers AL, Gardner RC, Seal KH, Boscardin WJ, Yaffe K. Association of Mild Traumatic Brain Injury With and Without Loss of Consciousness With Dementia in US Military Veterans. JAMA Neurol. 2018 09 01; 75(9):1055-1061. PMID: 29801145.
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    21. Zullo AR, Hersey M, Lee Y, Sharmin S, Bosco E, Daiello LA, Shah NR, Mor V, Boscardin WJ, Berard-Collins CM, Dore DD, Steinman MA. Outcomes of "diabetes-friendly" vs "diabetes-unfriendly" ß-blockers in older nursing home residents with diabetes after acute myocardial infarction. Diabetes Obes Metab. 2018 12; 20(12):2724-2732. PMID: 29952104.
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    22. Selekman RE, Shapiro DJ, Boscardin J, Williams G, Craig JC, Brandström P, Pennesi M, Roussey-Kesler G, Hari P, Copp HL. Uropathogen Resistance and Antibiotic Prophylaxis: A Meta-analysis. Pediatrics. 2018 07; 142(1). PMID: 29954832.
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    23. Franc BL, Copeland TP, Thombley R, Park M, Marafino B, Dean ML, Boscardin WJ, Rugo HS, Seidenwurm D, Sharma B, Johnston SR, Dudley RA. Geographic Variation in Postoperative Imaging for Low-Risk Breast Cancer. J Natl Compr Canc Netw. 2018 07; 16(7):829-837. PMID: 30006425.
      View in: PubMed
    24. Lum HD, Barnes DE, Katen MT, Shi Y, Boscardin J, Sudore RL. Improving a Full Range of Advance Care Planning Behavior Change and Action Domains: The PREPARE Randomized Trial. J Pain Symptom Manage. 2018 10; 56(4):575-581.e7. PMID: 29940209.
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    25. Shi Y, Fung KZ, John Boscardin W, Ngo S, Freedland SJ, Wong ML, Walter LC. Individualizing PSA Monitoring Among Older Prostate Cancer Survivors. J Gen Intern Med. 2018 05; 33(5):602-604. PMID: 29417461.
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    26. Petrillo LA, Gan S, Jing B, Lang-Brown S, Boscardin WJ, Lee SJ. Hypoglycemia in Hospice Patients With Type 2 Diabetes in a National Sample of Nursing Homes. JAMA Intern Med. 2018 05 01; 178(5):713-715. PMID: 29279891.
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    27. Lai JC, Covinsky KE, Dodge JL, Boscardin WJ, Segev DL, Roberts JP, Feng S. Reply. Hepatology. 2018 05; 67(5):2059-2060. PMID: 29377206.
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    28. Moore KL, Patel K, Boscardin WJ, Steinman MA, Ritchie C, Schwartz JB. Medication burden attributable to chronic co-morbid conditions in the very old and vulnerable. PLoS One. 2018; 13(4):e0196109. PMID: 29684077.
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    29. Gardner RC, Byers AL, Barnes DE, Li Y, Boscardin J, Yaffe K. Mild TBI and risk of Parkinson disease: A Chronic Effects of Neurotrauma Consortium Study. Neurology. 2018 05 15; 90(20):e1771-e1779. PMID: 29669907.
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    30. Suskind AM, Zhao S, Walter LC, Boscardin WJ, Finlayson E. Mortality and Functional Outcomes After Minor Urological Surgery in Nursing Home Residents: A National Study. J Am Geriatr Soc. 2018 05; 66(5):909-915. PMID: 29572851.
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    31. Jih J, Stijacic-Cenzer I, Seligman HK, Boscardin WJ, Nguyen TT, Ritchie CS. Chronic disease burden predicts food insecurity among older adults. Public Health Nutr. 2018 06; 21(9):1737-1742. PMID: 29388533.
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    32. Makaroun LK, Brown RT, Diaz-Ramirez LG, Ahalt C, Boscardin WJ, Lang-Brown S, Lee S. Wealth-Associated Disparities in Death and Disability in the United States and England. JAMA Intern Med. 2017 12 01; 177(12):1745-1753. PMID: 29059279.
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    33. Wehner MR, Cidre Serrano W, Nosrati A, Schoen PM, Chren MM, Boscardin J, Linos E. All-cause mortality in patients with basal and squamous cell carcinoma: A systematic review and meta-analysis. J Am Acad Dermatol. 2018 04; 78(4):663-672.e3. PMID: 29146125.
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    34. Brown RT, Diaz-Ramirez LG, Boscardin WJ, Lee SJ, Steinman MA. Functional Impairment and Decline in Middle Age: A Cohort Study. Ann Intern Med. 2017 Dec 05; 167(11):761-768. PMID: 29132150.
      View in: PubMed
    35. Green AJ, Gelfand JM, Cree BA, Bevan C, Boscardin WJ, Mei F, Inman J, Arnow S, Devereux M, Abounasr A, Nobuta H, Zhu A, Friessen M, Gerona R, von Büdingen HC, Henry RG, Hauser SL, Chan JR. Clemastine fumarate as a remyelinating therapy for multiple sclerosis (ReBUILD): a randomised, controlled, double-blind, crossover trial. Lancet. 2017 Dec 02; 390(10111):2481-2489. PMID: 29029896.
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    36. Cascino T, Vali M, Redberg R, Bravata DM, Boscardin J, Eilkhani E, Keyhani S. Guideline concordance of new statin prescriptions: who got a statin? Am J Manag Care. 2017 Sep; 23(9):528-533. PMID: 29087155.
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    37. Edwards JD, Lucas AR, Boscardin WJ, Dudley RA. Repeated Critical Illness and Unplanned Readmissions Within 1 Year to PICUs. Crit Care Med. 2017 Aug; 45(8):1276-1284. PMID: 28708677.
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    38. Sudore RL, Boscardin J, Feuz MA, McMahan RD, Katen MT, Barnes DE. Effect of the PREPARE Website vs an Easy-to-Read Advance Directive on Advance Care Planning Documentation and Engagement Among Veterans: A Randomized Clinical Trial. JAMA Intern Med. 2017 08 01; 177(8):1102-1109. PMID: 28520838.
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    39. Whitlock EL, Diaz-Ramirez LG, Glymour MM, Boscardin WJ, Covinsky KE, Smith AK. Association Between Persistent Pain and Memory Decline and Dementia in a Longitudinal Cohort of Elders. JAMA Intern Med. 2017 08 01; 177(8):1146-1153. PMID: 28586818.
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    40. Lai JC, Covinsky KE, Dodge JL, Boscardin WJ, Segev DL, Roberts JP, Feng S. Development of a novel frailty index to predict mortality in patients with end-stage liver disease. Hepatology. 2017 08; 66(2):564-574. PMID: 28422306.
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    41. Greysen SR, Stijacic Cenzer I, Boscardin WJ, Covinsky KE. Functional Impairment: An Unmeasured Marker of Medicare Costs for Postacute Care of Older Adults. J Am Geriatr Soc. 2017 Sep; 65(9):1996-2002. PMID: 28636200.
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    42. Brown RT, Komaiko KD, Shi Y, Fung KZ, Boscardin WJ, Au-Yeung A, Tarasovsky G, Jacob R, Steinman MA. Bringing functional status into a big data world: Validation of national Veterans Affairs functional status data. PLoS One. 2017; 12(6):e0178726. PMID: 28570678.
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    43. Meisel K, Arnold RM, Stijacic Cenzer I, Boscardin J, Smith AK. Survival, Functional Status, and Eating Ability After Percutaneous Endoscopic Gastrostomy Tube Placement for Acute Stroke. J Am Geriatr Soc. 2017 Aug; 65(8):1848-1852. PMID: 28449220.
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    44. Bleijenberg N, Smith AK, Lee SJ, Cenzer IS, Boscardin JW, Covinsky KE. Difficulty Managing Medications and Finances in Older Adults: A 10-year Cohort Study. J Am Geriatr Soc. 2017 Jul; 65(7):1455-1461. PMID: 28378345.
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    45. Stuart SE, Schoen P, Jin C, Parvataneni R, Arron S, Linos E, Boscardin WJ, Chren MM. Tumor recurrence of keratinocyte carcinomas judged appropriate for Mohs micrographic surgery using Appropriate Use Criteria. J Am Acad Dermatol. 2017 Jun; 76(6):1131-1138.e1. PMID: 28365039.
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    46. Garrett GL, Blanc PD, Boscardin J, Lloyd AA, Ahmed RL, Anthony T, Bibee K, Breithaupt A, Cannon J, Chen A, Cheng JY, Chiesa-Fuxench Z, Colegio OR, Curiel-Lewandrowski C, Del Guzzo CA, Disse M, Dowd M, Eilers R, Ortiz AE, Morris C, Golden SK, Graves MS, Griffin JR, Hopkins RS, Huang CC, Bae GH, Jambusaria A, Jennings TA, Jiang SI, Karia PS, Khetarpal S, Kim C, Klintmalm G, Konicke K, Koyfman SA, Lam C, Lee P, Leitenberger JJ, Loh T, Lowenstein S, Madankumar R, Moreau JF, Nijhawan RI, Ochoa S, Olasz EB, Otchere E, Otley C, Oulton J, Patel PH, Patel VA, Prabhu AV, Pugliano-Mauro M, Schmults CD, Schram S, Shih AF, Shin T, Soon S, Soriano T, Srivastava D, Stein JA, Sternhell-Blackwell K, Taylor S, Vidimos A, Wu P, Zajdel N, Zelac D, Arron ST. Incidence of and Risk Factors for Skin Cancer in Organ Transplant Recipients in the United States. JAMA Dermatol. 2017 03 01; 153(3):296-303. PMID: 28097368.
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    47. Steinman MA, Zullo AR, Lee Y, Daiello LA, Boscardin WJ, Dore DD, Gan S, Fung K, Lee SJ, Komaiko KD, Mor V. Association of ß-Blockers With Functional Outcomes, Death, and Rehospitalization in Older Nursing Home Residents After Acute Myocardial Infarction. JAMA Intern Med. 2017 02 01; 177(2):254-262. PMID: 27942713.
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    48. Ahn R, Woodbridge A, Abraham A, Saba S, Korenstein D, Madden E, Boscardin WJ, Keyhani S. Financial ties of principal investigators and randomized controlled trial outcomes: cross sectional study. BMJ. 2017 Jan 17; 356:i6770. PMID: 28096109.
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    49. Sudore RL, Heyland DK, Barnes DE, Howard M, Fassbender K, Robinson CA, Boscardin J, You JJ. Measuring Advance Care Planning: Optimizing the Advance Care Planning Engagement Survey. J Pain Symptom Manage. 2017 04; 53(4):669-681.e8. PMID: 28042072.
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    50. Schmajuk G, Tonner C, Miao Y, Yazdany J, Gannon J, Boscardin WJ, Daikh DI, Steinman MA. Folic Acid Supplementation Is Suboptimal in a National Cohort of Older Veterans Receiving Low Dose Oral Methotrexate. PLoS One. 2016; 11(12):e0168369. PMID: 27977768.
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    51. Dizon M, Linos E, Arron ST, Abuabara K, Ruiz de Luzuriaga AM, Jin C, Boscardin WJ, Chren MM. Comparisons of patients' satisfaction should take expectations into account. Br J Dermatol. 2017 Jan; 176(1):252-254. PMID: 27203511.
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    52. Zullo AR, Lee Y, Daiello LA, Mor V, John Boscardin W, Dore DD, Miao Y, Fung KZ, Komaiko KDR, Steinman MA. Beta-Blocker Use in U.S. Nursing Home Residents After Myocardial Infarction: A National Study. J Am Geriatr Soc. 2017 Apr; 65(4):754-762. PMID: 27861719.
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    53. Pollett S, Boscardin WJ, Azziz-Baumgartner E, Tinoco YO, Soto G, Romero C, Kok J, Biggerstaff M, Viboud C, Rutherford GW. Evaluating Google Flu Trends in Latin America: Important Lessons for the Next Phase of Digital Disease Detection. Clin Infect Dis. 2017 Jan 01; 64(1):34-41. PMID: 27678084.
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    54. Tang VL, Sudore R, Cenzer IS, Boscardin WJ, Smith A, Ritchie C, Wallhagen M, Finlayson E, Petrillo L, Covinsky K. Rates of Recovery to Pre-Fracture Function in Older Persons with Hip Fracture: an Observational Study. J Gen Intern Med. 2017 Feb; 32(2):153-158. PMID: 27605004.
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    55. Smith AK, Currow DC, Abernethy AP, Johnson MJ, Miao Y, Boscardin WJ, Ritchie CS. Prevalence and Outcomes of Breathlessness in Older Adults: A National Population Study. J Am Geriatr Soc. 2016 10; 64(10):2035-2041. PMID: 27603500.
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    56. DeJong C, Aguilar T, Tseng CW, Lin GA, Boscardin WJ, Dudley RA. Pharmaceutical Industry-Sponsored Meals and Physician Prescribing Patterns for Medicare Beneficiaries. JAMA Intern Med. 2016 08 01; 176(8):1114-1122. PMID: 27322350.
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    57. Sudore RL, Barnes DE, Le GM, Ramos R, Osua SJ, Richardson SA, Boscardin J, Schillinger D. Improving advance care planning for English-speaking and Spanish-speaking older adults: study protocol for the PREPARE randomised controlled trial. BMJ Open. 2016 07 11; 6(7):e011705. PMID: 27401363.
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    58. Suskind AM, Jin C, Cooperberg MR, Finlayson E, Boscardin WJ, Sen S, Walter LC. Preoperative Frailty Is Associated With Discharge to Skilled or Assisted Living Facilities After Urologic Procedures of Varying Complexity. Urology. 2016 11; 97:25-32. PMID: 27392651.
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    59. Smith AK, Ritchie CS, Miao Y, Boscardin WJ, Wallhagen ML. Self-Reported Hearing in the Last 2 Years of Life in Older Adults. J Am Geriatr Soc. 2016 07; 64(7):1486-91. PMID: 27341383.
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    60. Cenzer IS, Tang V, Boscardin WJ, Smith AK, Ritchie C, Wallhagen MI, Espaldon R, Covinsky KE. One-Year Mortality After Hip Fracture: Development and Validation of a Prognostic Index. J Am Geriatr Soc. 2016 09; 64(9):1863-8. PMID: 27295578.
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    61. Schoenfeld AJ, Davies JM, Marafino BJ, Dean M, DeJong C, Bardach NS, Kazi DS, Boscardin WJ, Lin GA, Duseja R, Mei YJ, Mehrotra A, Dudley RA. Variation in Quality of Urgent Health Care Provided During Commercial Virtual Visits. JAMA Intern Med. 2016 05 01; 176(5):635-42. PMID: 27042813.
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    62. Wehner MR, Linos E, Boscardin WJ, Chren MM. Competing Risk of Death in Kaplan-Meier Curves When Analyzing Subsequent Keratinocyte Cancer-Reply. JAMA Dermatol. 2016 Apr; 152(4):494-5. PMID: 27074364.
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    63. Auerbach AD, Kripalani S, Vasilevskis EE, Sehgal N, Lindenauer PK, Metlay JP, Fletcher G, Ruhnke GW, Flanders SA, Kim C, Williams MV, Thomas L, Giang V, Herzig SJ, Patel K, Boscardin WJ, Robinson EJ, Schnipper JL. Preventability and Causes of Readmissions in a National Cohort of General Medicine Patients. JAMA Intern Med. 2016 Apr; 176(4):484-93. PMID: 26954564.
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    64. Suskind AM, Walter LC, Jin C, Boscardin J, Sen S, Cooperberg MR, Finlayson E. Impact of frailty on complications in patients undergoing common urological procedures: a study from the American College of Surgeons National Surgical Quality Improvement database. BJU Int. 2016 May; 117(5):836-42. PMID: 26691588.
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    65. Chow FC, Boscardin WJ, Mills C, Ko N, Carroll C, Price RW, Deeks S, Sorond FA, Hsue PY. Cerebral vasoreactivity is impaired in treated, virally suppressed HIV-infected individuals. AIDS. 2016 Jan 02; 30(1):45-55. PMID: 26372478.
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    66. Romo RD, Lee SJ, Miao Y, Boscardin WJ, Smith AK. Subjective, Objective, and Observed Long-term Survival: A Longitudinal Cohort Study. JAMA Intern Med. 2015 Dec; 175(12):1986-8. PMID: 26502331.
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    67. Pollett S, Wood N, Boscardin WJ, Bengtsson H, Schwarcz S, Harriman K, Winter K, Rutherford G. Validating the Use of Google Trends to Enhance Pertussis Surveillance in California. PLoS Curr. 2015 Oct 19; 7. PMID: 26543674.
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    68. Grenon SM, Owens CD, Nosova EV, Hughes-Fulford M, Alley HF, Chong K, Perez S, Yen PK, Boscardin J, Hellmann J, Spite M, Conte MS. Short-Term, High-Dose Fish Oil Supplementation Increases the Production of Omega-3 Fatty Acid-Derived Mediators in Patients With Peripheral Artery Disease (the OMEGA-PAD I Trial). J Am Heart Assoc. 2015 Aug 21; 4(8):e002034. PMID: 26296857.
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    69. Adibi JJ, Lee MK, Saha S, Boscardin WJ, Apfel A, Currier RJ. Fetal sex differences in human chorionic gonadotropin fluctuate by maternal race, age, weight and by gestational age. J Dev Orig Health Dis. 2015 Dec; 6(6):493-500. PMID: 26242396.
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    70. Sheffrin M, Miao Y, Boscardin WJ, Steinman MA. Weight Loss Associated with Cholinesterase Inhibitors in Individuals with Dementia in a National Healthcare System. J Am Geriatr Soc. 2015 Aug; 63(8):1512-8. PMID: 26234945.
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    71. Hunt LJ, Covinsky KE, Yaffe K, Stephens CE, Miao Y, Boscardin WJ, Smith AK. Pain in Community-Dwelling Older Adults with Dementia: Results from the National Health and Aging Trends Study. J Am Geriatr Soc. 2015 Aug; 63(8):1503-11. PMID: 26200445.
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    72. Duseja R, Bardach NS, Lin GA, Yazdany J, Dean ML, Clay TH, Boscardin WJ, Dudley RA. Revisit rates and associated costs after an emergency department encounter: a multistate analysis. Ann Intern Med. 2015 Jun 02; 162(11):750-6. PMID: 26030633.
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    73. Chen CL, Lin GA, Bardach NS, Clay TH, Boscardin WJ, Gelb AW, Maze M, Gropper MA, Dudley RA. Preoperative medical testing in Medicare patients undergoing cataract surgery. N Engl J Med. 2015 Apr 16; 372(16):1530-8. PMID: 25875258.
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    74. Tang V, Boscardin WJ, Stijacic-Cenzer I, Lee SJ. Time to benefit for colorectal cancer screening: survival meta-analysis of flexible sigmoidoscopy trials. BMJ. 2015 Apr 16; 350:h1662. PMID: 25881903.
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    75. Wehner MR, Linos E, Parvataneni R, Stuart SE, Boscardin WJ, Chren MM. Timing of subsequent new tumors in patients who present with basal cell carcinoma or cutaneous squamous cell carcinoma. JAMA Dermatol. 2015 Apr; 151(4):382-8. PMID: 25588079.
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    76. Lee JS, Padilla B, DuBois SG, Oates A, Boscardin J, Goldsby RE. Second malignant neoplasms among children, adolescents and young adults with Wilms tumor. Pediatr Blood Cancer. 2015 Jul; 62(7):1259-64. PMID: 25809878.
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    77. Rogers SE, Thrasher AD, Miao Y, Boscardin WJ, Smith AK. Discrimination in Healthcare Settings is Associated with Disability in Older Adults: Health and Retirement Study, 2008-2012. J Gen Intern Med. 2015 Oct; 30(10):1413-20. PMID: 25773918.
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    78. Marafino BJ, Boscardin WJ, Dudley RA. Efficient and sparse feature selection for biomedical text classification via the elastic net: Application to ICU risk stratification from nursing notes. J Biomed Inform. 2015 Apr; 54:114-20. PMID: 25700665.
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    79. Zhang X, Boscardin WJ, Belin TR, Wan X, He Y, Zhang K.A Bayesian method for analyzing combinations of continuous, ordinal, and nominal categorical data with missing values. J Multiv Anal. 2015; 135:43-58.
    80. Lau JS, Adams SH, Park MJ, Boscardin WJ, Irwin CE. Improvement in preventive care of young adults after the affordable care act: the affordable care act is helping. JAMA Pediatr. 2014 Dec; 168(12):1101-6. PMID: 25347766.
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    81. Rodríguez L, Rodriguez P, Gómez B, Ayala JC, Oxenberg D, Perez-Castilla A, Netto MG, Soffer E, Boscardin WJ, Crowell MD. Two-year results of intermittent electrical stimulation of the lower esophageal sphincter treatment of gastroesophageal reflux disease. Surgery. 2015 Mar; 157(3):556-67. PMID: 25726315.
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    82. Song J, Boscardin WJ, Furst DE, Khanna D, Wong WK. A cautionary tale: dealing with missing data in clinical trials for rheumatic diseases. Clin Exp Rheumatol. 2014 Nov-Dec; 32(6 Suppl 86):S-122-6. PMID: 25372798.
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    83. Edwards JD, Vasilevskis EE, Yoo EJ, Houtrow AJ, Boscardin WJ, Dudley RA, Okumura MJ. Adults with childhood-onset chronic conditions admitted to US pediatric and adult intensive care units. J Crit Care. 2015 Feb; 30(1):201-6. PMID: 25466316.
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    84. Shi Y, Boscardin WJ, Walter LC. Reply: To PMID 25443902. Urology. 2014 Nov; 84(5):1065. PMID: 25443904.
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    85. Chong KC, Owens CD, Park M, Alley HF, Boscardin WJ, Conte MS, Gasper WJ, Grenon SM. Relationship between kidney disease and endothelial function in peripheral artery disease. J Vasc Surg. 2014 Dec; 60(6):1605-11. PMID: 25441679.
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    86. Abraham WT, Lindenfeld J, Reddy VY, Hasenfuss G, Kuck KH, Boscardin J, Gibbons R, Burkhoff D. A randomized controlled trial to evaluate the safety and efficacy of cardiac contractility modulation in patients with moderately reduced left ventricular ejection fraction and a narrow QRS duration: study rationale and design. J Card Fail. 2015 Jan; 21(1):16-23. PMID: 25285748.
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    87. Lee SJ, Boscardin WJ, Kirby KA, Covinsky KE. Individualizing life expectancy estimates for older adults using the Gompertz Law of Human Mortality. PLoS One. 2014; 9(9):e108540. PMID: 25265291.
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    88. Thampi S, Matthay KK, Boscardin WJ, Goldsby R, DuBois SG. Clinical Features and Outcomes Differ between Skeletal and Extraskeletal Osteosarcoma. Sarcoma. 2014; 2014:902620. PMID: 25294959.
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    89. Ward ME, Taubes A, Chen R, Miller BL, Sephton CF, Gelfand JM, Minami S, Boscardin J, Martens LH, Seeley WW, Yu G, Herz J, Filiano AJ, Arrant AE, Roberson ED, Kraft TW, Farese RV, Green A, Gan L. Early retinal neurodegeneration and impaired Ran-mediated nuclear import of TDP-43 in progranulin-deficient FTLD. J Exp Med. 2014 Sep 22; 211(10):1937-45. PMID: 25155018.
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    90. Lee JS, DuBois SG, Boscardin WJ, Wustrack RL, Goldsby RE. Secondary malignant neoplasms among children, adolescents, and young adults with osteosarcoma. Cancer. 2014 Dec 15; 120(24):3987-93. PMID: 25116228.
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    91. Schmajuk G, Miao Y, Yazdany J, Boscardin WJ, Daikh DI, Steinman MA. Identification of risk factors for elevated transaminases in methotrexate users through an electronic health record. Arthritis Care Res (Hoboken). 2014 Aug; 66(8):1159-66. PMID: 24470205.
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    92. Steinman MA, Miao Y, Boscardin WJ, Komaiko KD, Schwartz JB. Prescribing quality in older veterans: a multifocal approach. J Gen Intern Med. 2014 Oct; 29(10):1379-86. PMID: 25002159.
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    93. Nosova EV, Chong KC, Alley HF, Harris WS, Boscardin WJ, Conte MS, Owens CD, Grenon SM. Clinical correlates of red blood cell omega-3 fatty acid content in male veterans with peripheral arterial disease. J Vasc Surg. 2014 Nov; 60(5):1325-1331. PMID: 24953895.
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    94. He SY, McCulloch CE, Boscardin WJ, Chren MM, Linos E, Arron ST. Self-reported pigmentary phenotypes and race are significant but incomplete predictors of Fitzpatrick skin phototype in an ethnically diverse population. J Am Acad Dermatol. 2014 Oct; 71(4):731-7. PMID: 24928709.
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    95. Makam AN, Boscardin WJ, Miao Y, Steinman MA. Risk of thiazide-induced metabolic adverse events in older adults. J Am Geriatr Soc. 2014 Jun; 62(6):1039-45. PMID: 24823661.
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    96. Moy NY, Lee SJ, Chan T, Grovey B, Boscardin WJ, Gonzales R, Pierluissi E. Development and sustainability of an inpatient-to-outpatient discharge handoff tool: a quality improvement project. Jt Comm J Qual Patient Saf. 2014 May; 40(5):219-27. PMID: 24919253.
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    97. Lau JS, Adams SH, Boscardin WJ, Irwin CE. Young adults' health care utilization and expenditures prior to the Affordable Care Act. J Adolesc Health. 2014 Jun; 54(6):663-71. PMID: 24702839.
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    98. Moore KL, Boscardin WJ, Steinman MA, Schwartz JB. Patterns of chronic co-morbid medical conditions in older residents of U.S. nursing homes: differences between the sexes and across the agespan. J Nutr Health Aging. 2014 Apr; 18(4):429-36. PMID: 24676326.
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    99. Wehner MR, Chren MM, Nameth D, Choudhry A, Gaskins M, Nead KT, Boscardin WJ, Linos E. International prevalence of indoor tanning: a systematic review and meta-analysis. JAMA Dermatol. 2014 Apr; 150(4):390-400. PMID: 24477278.
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    100. Grenon SM, Chong K, Alley H, Nosova E, Gasper W, Hiramoto J, Boscardin WJ, Owens CD. Walking disability in patients with peripheral artery disease is associated with arterial endothelial function. J Vasc Surg. 2014 Apr; 59(4):1025-34. PMID: 24423479.
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    101. Edwards JD, Lucas AR, Stone PW, Boscardin WJ, Dudley RA. Frequency, risk factors, and outcomes of early unplanned readmissions to PICUs. Crit Care Med. 2013 Dec; 41(12):2773-83. PMID: 23982030.
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    102. Meyer AC, Boscardin WJ, Kwasa JK, Price RW. Is it time to rethink how neuropsychological tests are used to diagnose mild forms of HIV-associated neurocognitive disorders? Impact of false-positive rates on prevalence and power. Neuroepidemiology. 2013; 41(3-4):208-16. PMID: 24157541.
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    103. Bardach NS, Wang JJ, De Leon SF, Shih SC, Boscardin WJ, Goldman LE, Dudley RA. Effect of pay-for-performance incentives on quality of care in small practices with electronic health records: a randomized trial. JAMA. 2013 Sep 11; 310(10):1051-9. PMID: 24026600.
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    104. Smith AK, Walter LC, Miao Y, Boscardin WJ, Covinsky KE. Disability during the last two years of life. JAMA Intern Med. 2013 Sep 09; 173(16):1506-13. PMID: 23836120.
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    105. Bardach NS, Vittinghoff E, Asteria-Peñaloza R, Edwards JD, Yazdany J, Lee HC, Boscardin WJ, Cabana MD, Dudley RA. Measuring hospital quality using pediatric readmission and revisit rates. Pediatrics. 2013 Sep; 132(3):429-36. PMID: 23979094.
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    106. Linos E, Parvataneni R, Stuart SE, Boscardin WJ, Landefeld CS, Chren MM. Treatment of nonfatal conditions at the end of life: nonmelanoma skin cancer. JAMA Intern Med. 2013 Jun 10; 173(11):1006-12. PMID: 23699934.
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    107. Wong T, Matthay KK, Boscardin WJ, Hawkins RA, Brakeman PR, DuBois SG. Acute changes in blood pressure in patients with neuroblastoma treated with ¹³¹I-metaiodobenzylguanidine (MIBG). Pediatr Blood Cancer. 2013 Sep; 60(9):1424-30. PMID: 23613447.
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    108. Barnes DE, Boscardin WJ, Landefeld CS. Recovery, dependence or death after discharge. J Gen Intern Med. 2013 Mar; 28(3):343. PMID: 23435831.
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    109. Mihalis EL, Wysong A, Boscardin WJ, Tang JY, Chren MM, Arron ST. Factors affecting sunscreen use and sun avoidance in a U.S. national sample of organ transplant recipients. Br J Dermatol. 2013 Feb; 168(2):346-53. PMID: 22880814.
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    110. Bischoff KE, Sudore R, Miao Y, Boscardin WJ, Smith AK. Advance care planning and the quality of end-of-life care in older adults. J Am Geriatr Soc. 2013 Feb; 61(2):209-14. PMID: 23350921.
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    111. Lee SJ, Boscardin WJ, Stijacic-Cenzer I, Conell-Price J, O'Brien S, Walter LC. Time lag to benefit after screening for breast and colorectal cancer: meta-analysis of survival data from the United States, Sweden, United Kingdom, and Denmark. BMJ. 2013 Jan 08; 346:e8441. PMID: 23299842.
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    112. Miao Y, Cenzer IS, Kirby K, Boscardin WJ.. Proceedings of the SAS Global Forum. Estimating Harrell’s optimism on predictive indices using bootstrap samples. 2013; 504(13).
    113. Miao Y, Cenzer IS, Kirby K, Boscardin WJ.. Proceedings of the Western Users of Sas Software Conference. Optimism of best subset selection by AIC/BIC for prognostic model building. 2013; 75(13).
    114. Chren MM, Linos E, Torres JS, Stuart SE, Parvataneni R, Boscardin WJ. Tumor recurrence 5 years after treatment of cutaneous basal cell carcinoma and squamous cell carcinoma. J Invest Dermatol. 2013 May; 133(5):1188-96. PMID: 23190903.
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    115. Pierluissi E, Mehta KM, Kirby KA, Boscardin WJ, Fortinsky RH, Palmer RM, Landefeld CS. Depressive symptoms after hospitalization in older adults: function and mortality outcomes. J Am Geriatr Soc. 2012 Dec; 60(12):2254-62. PMID: 23176725.
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    116. Bardach NS, Asteria-Peñaloza R, Boscardin WJ, Dudley RA. The relationship between commercial website ratings and traditional hospital performance measures in the USA. BMJ Qual Saf. 2013 Mar; 22(3):194-202. PMID: 23178860.
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    117. Aragon K, Covinsky K, Miao Y, Boscardin WJ, Flint L, Smith AK. Use of the Medicare posthospitalization skilled nursing benefit in the last 6 months of life. Arch Intern Med. 2012 Nov 12; 172(20):1573-9. PMID: 23026981.
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    118. Gogia R, Binstock M, Hirose R, Boscardin WJ, Chren MM, Arron ST. Fitzpatrick skin phototype is an independent predictor of squamous cell carcinoma risk after solid organ transplantation. J Am Acad Dermatol. 2013 Apr; 68(4):585-591. PMID: 23107311.
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    119. Meyer AC, Dua T, Boscardin WJ, Escarce JJ, Saxena S, Birbeck GL. Critical determinants of the epilepsy treatment gap: a cross-national analysis in resource-limited settings. Epilepsia. 2012 Dec; 53(12):2178-85. PMID: 23106784.
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    120. Steinman MA, Lee SJ, John Boscardin W, Miao Y, Fung KZ, Moore KL, Schwartz JB. Patterns of multimorbidity in elderly veterans. J Am Geriatr Soc. 2012 Oct; 60(10):1872-80. PMID: 23035702.
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    121. Barnes DE, Mehta KM, Boscardin WJ, Fortinsky RH, Palmer RM, Kirby KA, Landefeld CS. Prediction of recovery, dependence or death in elders who become disabled during hospitalization. J Gen Intern Med. 2013 Feb; 28(2):261-8. PMID: 23054919.
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    122. Yau CK, Eng C, Cenzer IS, Boscardin WJ, Rice-Trumble K, Lee SJ. Glycosylated hemoglobin and functional decline in community-dwelling nursing home-eligible elderly adults with diabetes mellitus. J Am Geriatr Soc. 2012 Jul; 60(7):1215-21. PMID: 22702660.
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    123. Smith AK, McCarthy E, Weber E, Cenzer IS, Boscardin J, Fisher J, Covinsky K. Half of older Americans seen in emergency department in last month of life; most admitted to hospital, and many die there. Health Aff (Millwood). 2012 Jun; 31(6):1277-85. PMID: 22665840.
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    124. Hiramoto JS, Owens CD, Kim JM, Boscardin J, Belkin M, Creager MA, Conte MS. Sex-based differences in the inflammatory profile of peripheral artery disease and the association with primary patency of lower extremity vein bypass grafts. J Vasc Surg. 2012 Aug; 56(2):387-95; discussion 395. PMID: 22633420.
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    125. Gelfand JM, Goodin DS, Boscardin WJ, Nolan R, Cuneo A, Green AJ. Retinal axonal loss begins early in the course of multiple sclerosis and is similar between progressive phenotypes. PLoS One. 2012; 7(5):e36847. PMID: 22666330.
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    126. Yu KC, Nettar KD, Bapna S, Boscardin WJ, Maas CS. Split-face double-blind study comparing the onset of action of onabotulinumtoxinA and abobotulinumtoxinA. Arch Facial Plast Surg. 2012 May-Jun; 14(3):198-204. PMID: 22183059.
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    127. Moore KL, Boscardin WJ, Steinman MA, Schwartz JB. Age and sex variation in prevalence of chronic medical conditions in older residents of U.S. nursing homes. J Am Geriatr Soc. 2012 Apr; 60(4):756-64. PMID: 22463062.
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    128. Finlayson E, Zhao S, Boscardin WJ, Fries BE, Landefeld CS, Dudley RA. Functional status after colon cancer surgery in elderly nursing home residents. J Am Geriatr Soc. 2012 May; 60(5):967-73. PMID: 22428583.
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    129. Cenzer IS, Miao Y, Kirby K, Boscardin WJ .. Proceedings of the Western Users of Sas Software Conference. Estimating Harrell’s optimism using bootstrap samples. 2012; 74(12).
    130. Lee HC, Gould JB, Boscardin WJ, El-Sayed YY, Blumenfeld YJ. Trends in cesarean delivery for twin births in the United States: 1995-2008. Obstet Gynecol. 2011 Nov; 118(5):1095-101. PMID: 22015878.
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    131. O'Hare AM, Choi AI, Boscardin WJ, Clinton WL, Zawadzki I, Hebert PL, Kurella Tamura M, Taylor L, Larson EB. Trends in timing of initiation of chronic dialysis in the United States. Arch Intern Med. 2011 Oct 10; 171(18):1663-9. PMID: 21987197.
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    132. Anton PA, Saunders T, Elliott J, Khanukhova E, Dennis R, Adler A, Cortina G, Tanner K, Boscardin J, Cumberland WG, Zhou Y, Ventuneac A, Carballo-Diéguez A, Rabe L, McCormick T, Gabelnick H, Mauck C, McGowan I. First phase 1 double-blind, placebo-controlled, randomized rectal microbicide trial using UC781 gel with a novel index of ex vivo efficacy. PLoS One. 2011; 6(9):e23243. PMID: 21969851.
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    134. Mehta KM, Pierluissi E, Boscardin WJ, Kirby KA, Walter LC, Chren MM, Palmer RM, Counsell SR, Landefeld CS. A clinical index to stratify hospitalized older adults according to risk for new-onset disability. J Am Geriatr Soc. 2011 Jul; 59(7):1206-16. PMID: 21649616.
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    135. Chren MM, Torres JS, Stuart SE, Bertenthal D, Labrador RJ, Boscardin WJ. Recurrence after treatment of nonmelanoma skin cancer: a prospective cohort study. Arch Dermatol. 2011 May; 147(5):540-6. PMID: 21576572.
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    136. Chung JH, Phibbs CS, Boscardin WJ, Kominski GF, Ortega AN, Gregory KD, Needleman J. Examining the effect of hospital-level factors on mortality of very low birth weight infants using multilevel modeling. J Perinatol. 2011 Dec; 31(12):770-5. PMID: 21494232.
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    137. Lee SJ, Boscardin WJ, Stijacic Cenzer I, Huang ES, Rice-Trumble K, Eng C. The risks and benefits of implementing glycemic control guidelines in frail older adults with diabetes mellitus. J Am Geriatr Soc. 2011 Apr; 59(4):666-72. PMID: 21480838.
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    138. Steinman MA, Lund BC, Miao Y, Boscardin WJ, Kaboli PJ. Geriatric conditions, medication use, and risk of adverse drug events in a predominantly male, older veteran population. J Am Geriatr Soc. 2011 Apr; 59(4):615-21. PMID: 21410446.
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    139. Wirtschafter DD, Powers RJ, Pettit JS, Lee HC, Boscardin WJ, Ahmad Subeh M, Gould JB. Nosocomial infection reduction in VLBW infants with a statewide quality-improvement model. Pediatrics. 2011 Mar; 127(3):419-26. PMID: 21339273.
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    140. Steinman MA, Hanlon JT, Sloane RJ, Boscardin WJ, Schmader KE. Do geriatric conditions increase risk of adverse drug reactions in ambulatory elders? Results from the VA GEM Drug Study. J Gerontol A Biol Sci Med Sci. 2011 Apr; 66(4):444-51. PMID: 21321003.
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    141. Smith AK, Cenzer IS, Knight SJ, Puntillo KA, Widera E, Williams BA, Boscardin WJ, Covinsky KE. The epidemiology of pain during the last 2 years of life. Ann Intern Med. 2010 Nov 02; 153(9):563-9. PMID: 21041575.
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    142. Wong WK, Boscardin WJ, Postlethwaite AE, Furst DE. Handling missing data issues in clinical trials for rheumatic diseases. Contemp Clin Trials. 2011 Jan; 32(1):1-9. PMID: 20840873.
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    143. Stein JC, Wang R, Adler N, Boscardin J, Jacoby VL, Won G, Goldstein R, Kohn MA. Emergency physician ultrasonography for evaluating patients at risk for ectopic pregnancy: a meta-analysis. Ann Emerg Med. 2010 Dec; 56(6):674-83. PMID: 20828874.
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    144. Gordon WJ, Polansky JM, Boscardin WJ, Fung KZ, Steinman MA. Coronary risk assessment by point-based vs. equation-based Framingham models: significant implications for clinical care. J Gen Intern Med. 2010 Nov; 25(11):1145-51. PMID: 20824362.
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    145. Kelly A, Conell-Price J, Covinsky K, Cenzer IS, Chang A, Boscardin WJ, Smith AK. Length of stay for older adults residing in nursing homes at the end of life. J Am Geriatr Soc. 2010 Sep; 58(9):1701-6. PMID: 20738438.
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    146. Chung JH, Phibbs CS, Boscardin WJ, Kominski GF, Ortega AN, Needleman J. The effect of neonatal intensive care level and hospital volume on mortality of very low birth weight infants. Med Care. 2010 Jul; 48(7):635-44. PMID: 20548252.
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    147. Boscardin WJ. The use and interpretation of linear regression analysis in ophthalmology research. Am J Ophthalmol. 2010 Jul; 150(1):1-2. PMID: 20609702.
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    148. Wagner J, Dusick JR, McArthur DL, Cohan P, Wang C, Swerdloff R, Boscardin WJ, Kelly DF. Acute gonadotroph and somatotroph hormonal suppression after traumatic brain injury. J Neurotrauma. 2010 Jun; 27(6):1007-19. PMID: 20214417.
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    149. Valley JK, Swinton P, Boscardin WJ, Lue TF, Rinaudo PF, Wu MC, Garcia MM. Preimplantation mouse embryo selection guided by light-induced dielectrophoresis. PLoS One. 2010 Apr 13; 5(4):e10160. PMID: 20405021.
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    150. Grudzen CR, Hoffman JR, Koenig WJ, Boscardin J, Lorenz KA, Asch SM. The LA story: what happened after a new policy allowing paramedics to forgo resuscitation attempts in prehospital cardiac arrest. Resuscitation. 2010 Jun; 81(6):685-90. PMID: 20236748.
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    151. Tang JY, Parimi N, Wu A, Boscardin WJ, Shikany JM, Chren MM, Cummings SR, Epstein EH, Bauer DC. Inverse association between serum 25(OH) vitamin D levels and non-melanoma skin cancer in elderly men. Cancer Causes Control. 2010 Mar; 21(3):387-91. PMID: 19921445.
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    152. Newman PA, Lee SJ, Duan N, Rudy E, Nakazono TK, Boscardin J, Kakinami L, Shoptaw S, Diamant A, Cunningham WE. Preventive HIV vaccine acceptability and behavioral risk compensation among a random sample of high-risk adults in Los Angeles (LA VOICES). Health Serv Res. 2009 Dec; 44(6):2167-79. PMID: 19780857.
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    153. Stone GW, Martin JL, de Boer MJ, Margheri M, Bramucci E, Blankenship JC, Metzger DC, Gibbons RJ, Lindsay BS, Weiner BH, Lansky AJ, Krucoff MW, Fahy M, Boscardin WJ. Effect of supersaturated oxygen delivery on infarct size after percutaneous coronary intervention in acute myocardial infarction. Circ Cardiovasc Interv. 2009 Oct; 2(5):366-75. PMID: 20031745.
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    154. Crespi CM, Boscardin WJ. Bayesian Model Checking for Multivariate Outcome Data. Comput Stat Data Anal. 2009 Sep 01; 53(11):3765-3772. PMID: 20204167.
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    155. Cooper CB, Boscardin WJ, Colthurst JR, Kleerup EC. Treatment of mild persistent asthma by cutaneous electronic stimulation. Eur Respir J. 2009 Aug; 34(2):515-7. PMID: 19648527.
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    156. FitzGerald JD, Boscardin WJ, Ettner SL. Changes in regional variation of Medicare home health care utilization and service mix for patients undergoing major orthopedic procedures in response to changes in reimbursement policy. Health Serv Res. 2009 Aug; 44(4):1232-52. PMID: 19500167.
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    157. Grudzen CR, Koenig WJ, Hoffman JR, Boscardin WJ, Lorenz KA, Asch SM. Potential impact of a verbal prehospital DNR policy. Prehosp Emerg Care. 2009 Apr-Jun; 13(2):169-72. PMID: 19291552.
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    158. Kernisan LP, Lee SJ, Boscardin WJ, Landefeld CS, Dudley RA. Association between hospital-reported Leapfrog Safe Practices Scores and inpatient mortality. JAMA. 2009 Apr 01; 301(13):1341-8. PMID: 19336709.
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    159. Robinson PL, Boscardin WJ, George SM, Teklehaimanot S, Heslin KC, Bluthenthal RN. The effect of urban street gang densities on small area homicide incidence in a large metropolitan county, 1994-2002. J Urban Health. 2009 Jul; 86(4):511-23. PMID: 19247837.
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    160. Wong MD, Ettner SL, Boscardin WJ, Shapiro MF. The contribution of cancer incidence, stage at diagnosis and survival to racial differences in years of life expectancy. J Gen Intern Med. 2009 Apr; 24(4):475-81. PMID: 19189193.
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    161. Sarkisian CA, Gruenewald TL, John Boscardin W, Seeman TE. Preliminary evidence for subdimensions of geriatric frailty: the MacArthur study of successful aging. J Am Geriatr Soc. 2008 Dec; 56(12):2292-7. PMID: 19016933.
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    162. Fatemi N, Dusick JR, Mattozo C, McArthur DL, Cohan P, Boscardin J, Wang C, Swerdloff RS, Kelly DF. Pituitary hormonal loss and recovery after transsphenoidal adenoma removal. Neurosurgery. 2008 Oct; 63(4):709-18; discussion 718-9. PMID: 18981881.
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    163. Anton PA, Ibarrondo FJ, Boscardin WJ, Zhou Y, Schwartz EJ, Ng HL, Hausner MA, Shih R, Elliott J, Hultin PM, Hultin LE, Price C, Fuerst M, Adler A, Wong JT, Yang OO, Jamieson BD. Differential immunogenicity of vaccinia and HIV-1 components of a human recombinant vaccine in mucosal and blood compartments. Vaccine. 2008 Aug 18; 26(35):4617-23. PMID: 18621451.
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    164. Bavisetty S, Bavisetty S, McArthur DL, Dusick JR, Wang C, Cohan P, Boscardin WJ, Swerdloff R, Levin H, Chang DJ, Muizelaar JP, Kelly DF. Chronic hypopituitarism after traumatic brain injury: risk assessment and relationship to outcome. Neurosurgery. 2008 May; 62(5):1080-93; discussion 1093-4. PMID: 18580806.
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    165. Zhang X, Boscardin WJ, Belin TR. Bayesian Analysis of Multivariate Nominal Measures Using Multivariate Multinomial Probit Models. Comput Stat Data Anal. 2008 Mar 15; 52(7):3697-3708. PMID: 19396365.
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    166. Gelman A, Zaiying H, van Dyk DA, and Boscardin WJ.. Using redundant parameterizations to fit hierarchical models. J Comput Graph Stat. 2008; 17:95-122.
    167. Boscardin WJ, Zhang X, and Belin TR.Modeling a mixture of ordinal and continuous repeated measures. J Stat Comput Sim. 2008; 78:873-886.
    168. Mojica CM, Bastani R, Ponce NA, Boscardin WJ. Latinas with abnormal breast findings: patient predictors of timely diagnostic resolution. J Womens Health (Larchmt). 2007 Dec; 16(10):1468-77. PMID: 18062762.
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    169. Gonzalez NR, Boscardin WJ, Glenn T, Vinuela F, Martin NA. Vasospasm probability index: a combination of transcranial doppler velocities, cerebral blood flow, and clinical risk factors to predict cerebral vasospasm after aneurysmal subarachnoid hemorrhage. J Neurosurg. 2007 Dec; 107(6):1101-12. PMID: 18077946.
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    170. McGowan I, Elliott J, Cortina G, Tanner K, Siboliban C, Adler A, Cho D, Boscardin WJ, Soto-Torres L, Anton PA. Characterization of baseline intestinal mucosal indices of injury and inflammation in men for use in rectal microbicide trials (HIV Prevention Trials Network-056). J Acquir Immune Defic Syndr. 2007 Dec 01; 46(4):417-25. PMID: 17891044.
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    171. Epeldegui M, Breen EC, Hung YP, Boscardin WJ, Detels R, Martínez-Maza O. Elevated expression of activation induced cytidine deaminase in peripheral blood mononuclear cells precedes AIDS-NHL diagnosis. AIDS. 2007 Nov 12; 21(17):2265-70. PMID: 18090274.
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    172. Weng HH, Kaplan RM, Boscardin WJ, Maclean CH, Lee IY, Chen W, Fitzgerald JD. Development of a decision aid to address racial disparities in utilization of knee replacement surgery. Arthritis Rheum. 2007 May 15; 57(4):568-75. PMID: 17471558.
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    173. FitzGerald JD, Boscardin WJ, Hahn BH, Ettner SL. Impact of the Medicare Short Stay Transfer Policy on patients undergoing major orthopedic surgery. Health Serv Res. 2007 Feb; 42(1 Pt 1):25-44. PMID: 17355580.
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    174. Boscardin WJ, Yan X, Wong WK.A reanalysis of a longitudinal Scleroderma clinical trial using informative dropout models. J Stat Plan Infer. 2007; 137:3848-3858.
    175. Wong MD, Chung AK, Boscardin WJ, Li M, Hsieh HJ, Ettner SL, Shapiro MF. The contribution of specific causes of death to sex differences in mortality. Public Health Rep. 2006 Nov-Dec; 121(6):746-54. PMID: 17278410.
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    176. FitzGerald JD, Mangione CM, Boscardin J, Kominski G, Hahn B, Ettner SL. Impact of changes in Medicare Home Health care reimbursement on month-to-month Home Health utilization between 1996 and 2001 for a national sample of patients undergoing orthopedic procedures. Med Care. 2006 Sep; 44(9):870-8. PMID: 16932139.
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    177. Poles MA, Boscardin WJ, Elliott J, Taing P, Fuerst MM, McGowan I, Brown S, Anton PA. Lack of decay of HIV-1 in gut-associated lymphoid tissue reservoirs in maximally suppressed individuals. J Acquir Immune Defic Syndr. 2006 Sep; 43(1):65-8. PMID: 16936559.
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    178. Breen EC, Fatahi S, Epeldegui M, Boscardin WJ, Detels R, Martínez-Maza O. Elevated serum soluble CD30 precedes the development of AIDS-associated non-Hodgkin's B cell lymphoma. Tumour Biol. 2006; 27(4):187-94. PMID: 16651853.
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    179. Pedroza-Martins L, Boscardin WJ, Anisman-Posner DJ, Redsar BN, Bryson YJ, Yang OO, Uittenbogaart CH. Interferon-gamma decreases replication of primary R5 HIV-1 isolates in thymocytes. AIDS. 2006 Apr 04; 20(6):939-42. PMID: 16549983.
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    180. Zhang X, Boscardin WJ, Belin, TR.Sampling correlation matrices in Bayesian models with correlated latent variables. J Comput Graph Stat. 2006; 15:880-896.
    181. Oertel M, Boscardin WJ, Obrist WD, Glenn TC, McArthur DL, Gravori T, Lee JH, Martin NA. Posttraumatic vasospasm: the epidemiology, severity, and time course of an underestimated phenomenon: a prospective study performed in 299 patients. J Neurosurg. 2005 Nov; 103(5):812-24. PMID: 16304984.
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    182. Widney DP, Breen EC, Boscardin WJ, Kitchen SG, Alcantar JM, Smith JB, Zack JA, Detels R, Martínez-Maza O. Serum levels of the homeostatic B cell chemokine, CXCL13, are elevated during HIV infection. J Interferon Cytokine Res. 2005 Nov; 25(11):702-6. PMID: 16318584.
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    183. Breen EC, Epeldegui M, Boscardin WJ, Widney DP, Detels R, Martínez-Maza O. Elevated levels of soluble CD44 precede the development of AIDS-associated non-Hodgkin's B-cell lymphoma. AIDS. 2005 Oct 14; 19(15):1711-2. PMID: 16184051.
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    184. Wong MD, Tagawa T, Hsieh HJ, Shapiro MF, Boscardin WJ, Ettner SL. Differences in cause-specific mortality between Latino and white adults. Med Care. 2005 Oct; 43(10):1058-62. PMID: 16166877.
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    185. Soustiel JF, Glenn TC, Shik V, Boscardin J, Mahamid E, Zaaroor M. Monitoring of cerebral blood flow and metabolism in traumatic brain injury. J Neurotrauma. 2005 Sep; 22(9):955-65. PMID: 16156711.
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    186. Yang X, Belin TR, Boscardin WJ. Imputation and variable selection in linear regression models with missing covariates. Biometrics. 2005 Jun; 61(2):498-506. PMID: 16011697.
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    187. Fonarow GC, Adams KF, Abraham WT, Yancy CW, Boscardin WJ. Risk stratification for in-hospital mortality in acutely decompensated heart failure: classification and regression tree analysis. JAMA. 2005 Feb 02; 293(5):572-80. PMID: 15687312.
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    188. Dinov ID, Boscardin JW, Mega MS, Sowell EL, Toga AW. A wavelet-based statistical analysis of FMRI data: I. motivation and data distribution modeling. Neuroinformatics. 2005; 3(4):319-42. PMID: 16284415.
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    189. McGowan I, Elliott J, Fuerst M, Taing P, Boscardin J, Poles M, Anton P. Increased HIV-1 mucosal replication is associated with generalized mucosal cytokine activation. J Acquir Immune Defic Syndr. 2004 Oct 01; 37(2):1228-36. PMID: 15385729.
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    190. Bergsneider M, Yang I, Hu X, McArthur DL, Cook SW, Boscardin WJ. Relationship between valve opening pressure, body position, and intracranial pressure in normal pressure hydrocephalus: paradigm for selection of programmable valve pressure setting. Neurosurgery. 2004 Oct; 55(4):851-8; discussion 858-9. PMID: 15458593.
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    191. Boscardin WJ, Zhang X.Applied Bayesian Modeling and Causal Inference from Incomplete-Data Perspectives (Gelman and Meng, editors). Modeling the covariance and correlation matrix of repeated measures. 2004.
    192. Breen EC, Boscardin WJ, Detels R, Jacobson LP, Smith MW, O'Brien SJ, Chmiel JS, Rinaldo CR, Lai S, Martínez-Maza O. Non-Hodgkin's B cell lymphoma in persons with acquired immunodeficiency syndrome is associated with increased serum levels of IL10, or the IL10 promoter -592 C/C genotype. Clin Immunol. 2003 Nov; 109(2):119-29. PMID: 14597210.
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    193. Chung JH, Boscardin WJ, Garite TJ, Lagrew DC, Porto M. Ethnic differences in birth weight by gestational age: at least a partial explanation for the Hispanic epidemiologic paradox? Am J Obstet Gynecol. 2003 Oct; 189(4):1058-62. PMID: 14586355.
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    194. Glenn TC, Kelly DF, Boscardin WJ, McArthur DL, Vespa P, Oertel M, Hovda DA, Bergsneider M, Hillered L, Martin NA. Energy dysfunction as a predictor of outcome after moderate or severe head injury: indices of oxygen, glucose, and lactate metabolism. J Cereb Blood Flow Metab. 2003 Oct; 23(10):1239-50. PMID: 14526234.
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    195. Widney D, Boscardin WJ, Kasravi A, Martínez-Maza O. Expression and function of CD28 on Epstein-Barr virus-positive B cell lines and AIDS-associated non-Hodgkin's lymphoma cell lines. Tumour Biol. 2003 Mar-Apr; 24(2):82-93. PMID: 12853703.
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    196. Wong MD, Shapiro MF, Boscardin WJ, Ettner SL. Contribution of major diseases to disparities in mortality. N Engl J Med. 2002 Nov 14; 347(20):1585-92. PMID: 12432046.
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    197. Oertel M, Kelly DF, Lee JH, McArthur DL, Glenn TC, Vespa P, Boscardin WJ, Hovda DA, Martin NA. Efficacy of hyperventilation, blood pressure elevation, and metabolic suppression therapy in controlling intracranial pressure after head injury. J Neurosurg. 2002 Nov; 97(5):1045-53. PMID: 12450025.
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    198. Yang OO, Boscardin WJ, Matud J, Hausner MA, Hultin LE, Hultin PM, Shih R, Ferbas J, Siegal FP, Shodell M, Shearer GM, Grene E, Carrington M, O'Brien S, Price CB, Detels R, Jamieson BD, Giorgi JV. Immunologic profile of highly exposed yet HIV type 1-seronegative men. AIDS Res Hum Retroviruses. 2002 Sep 20; 18(14):1051-65. PMID: 12396457.
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    199. Pedroza-Martins L, Boscardin WJ, Anisman-Posner DJ, Schols D, Bryson YJ, Uittenbogaart CH. Impact of cytokines on replication in the thymus of primary human immunodeficiency virus type 1 isolates from infants. J Virol. 2002 Jul; 76(14):6929-43. PMID: 12072494.
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    200. Vespa PM, Boscardin WJ, Hovda DA, McArthur DL, Nuwer MR, Martin NA, Nenov V, Glenn TC, Bergsneider M, Kelly DF, Becker DP. Early and persistent impaired percent alpha variability on continuous electroencephalography monitoring as predictive of poor outcome after traumatic brain injury. J Neurosurg. 2002 Jul; 97(1):84-92. PMID: 12134937.
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    201. Oertel M, Kelly DF, McArthur D, Boscardin WJ, Glenn TC, Lee JH, Gravori T, Obukhov D, McBride DQ, Martin NA. Progressive hemorrhage after head trauma: predictors and consequences of the evolving injury. J Neurosurg. 2002 Jan; 96(1):109-16. PMID: 11794591.
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    202. Goetz MB, Boscardin WJ, Wiley D, Alkasspooles S. Decreased recovery of CD4 lymphocytes in older HIV-infected patients beginning highly active antiretroviral therapy. AIDS. 2001 Aug 17; 15(12):1576-9. PMID: 11504992.
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    203. Lee JH, Kelly DF, Oertel M, McArthur DL, Glenn TC, Vespa P, Boscardin WJ, Martin NA. Carbon dioxide reactivity, pressure autoregulation, and metabolic suppression reactivity after head injury: a transcranial Doppler study. J Neurosurg. 2001 Aug; 95(2):222-32. PMID: 11780891.
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    204. Boscardin WJ and Weiss RE .. Proceedings of the American Statistical Association Section on Bayesian Statistical Science. Models for the covariance matrix of multivariate longitudinal and repeated measures data. 2001.
    205. Breen EC, McDonald M, Fan J, Boscardin J, Fahey JL. Cytokine gene expression occurs more rapidly in stimulated peripheral blood mononuclear cells from human immunodeficiency virus-infected persons. Clin Diagn Lab Immunol. 2000 Sep; 7(5):769-73. PMID: 10973452.
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    206. Uittenbogaart CH, Boscardin WJ, Anisman-Posner DJ, Koka PS, Bristol G, Zack JA. Effect of cytokines on HIV-induced depletion of thymocytes in vivo. AIDS. 2000 Jul 07; 14(10):1317-25. PMID: 10930145.
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    207. Fahey JL, Schnelle JF, Boscardin J, Thomas JK, Gorre ME, Aziz N, Sadeghi H, Nishanian P. Distinct categories of immunologic changes in frail elderly. Mech Ageing Dev. 2000 May 18; 115(1-2):1-20. PMID: 10854626.
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    208. Boscardin WJ, Taylor JM, Law N. Longitudinal models for AIDS marker data. Stat Methods Med Res. 1998 Mar; 7(1):13-27. PMID: 9533259.
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    209. Gelman A, King G, Boscardin WJ.. Estimating the probability of events that have never occurred: When is your vote decisive?. Journal of the American Statistical Association. 1998; 93(1):1-9.
    210. Boscardin WJ and Gelman A.. Bayesian computation for parametric models of heteroscedasticity in the linear model. Advances in Econometrics. 1996; 11(A):87-109.