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William Winter and Roger L. Bertholf

William Winter, MD, DABCC, FACB
University of Florida, Gainesville, FL

A native of San Francisco, Dr. Winter attended Santa Clara University as an undergraduate. After medical school at Loyola University in Chicago, Dr. Winter trained in pediatrics at the University of Kentucky. He then trained in pediatric endocrinology at the University of Florida under Arlan Rosenbloom and Noel Maclaren. Currently Dr. Winter is a professor of pathology and pediatrics at the University of Florida. His duties include serving as a clinical chemist for Shands Hospital and directing the 2nd year medical student pathology course. As an NIH-funded investigator, he is principle investigator for the Type 1 Diabetes TrialNet Islet Cell Autoantibody Core Laboratory. 


Roger L. Bertholf, PhD, DABCC, FACB
University of Florida Health Science Center, Jacksonville, FL

Dr. Bertholf is professor of pathology in the University of Florida College of Medicine, and is Director of Clinical Chemistry, Toxicology, and Point of Care Testing at Shands Jacksonville Hospital. He currently chairs the Organizing Committee for the biannual AACC Professional Practice in Clinical Chemistry Review Course.

Dr. Bertholf has lectured and published on a wide variety of topics, including laboratory statistics, heavy metal neurotoxicity, thyroid function, immunochemical methods, research ethics, medical errors, chromatographic applications in clinical chemistry and toxicology, and urine drug testing in pain management.