Dr. Gordis served as chairman of the Department of Epidemiology in the JHU School of Hygiene and Public Health for 18 years and as Associate Dean for Admissions and Academic Affairs in the JHU School of Medicine for 6 years. He developed, and for 13 years co-directed, Physician and Society, a required 4-year course in the JHU School of Medicine. For 11 years, Dr. Gordis directed the Robert Wood Johnson Clinical Scholars Program at Johns Hopkins.   Dr. Gordis received a B.A. from Columbia University, a Bachelor of Hebrew Literature degree from the Jewish Theological Seminary in New York City, an M.D. from the State University of New York and a Master of Public Health (MPH) and Doctor of Public Health (DrPH) from the JHU School of Hygiene and Public Health. His current research interest is the impact of uncertainty on the translation of scientific data into public policy. He served as a member of the United States Preventive Services Task Force. Dr. Gordis has taught introductory epidemiology at Johns Hopkins to more than 17,000 medical students and public health students over 32 years. He has taught introductory epidemiology to Federal and to State judges in courses that were developed following the Supreme Court’s Daubert ruling. He is the author of several books including a textbook, Epidemiology, now in its fourth edition. He co-authored the chapter on Epidemiology for the Reference Manual on Scientific Evidence published by the Federal Judicial Center and its revision for the second edition. He is now co-authoring the revision of this chapter for the coming third edition of the Reference Manual. He served as President of the American Epidemiological Society and the Society for Epidemiologic Research. Dr. Gordis is a member of the Institute of Medicine and a Fellow of the American Association for the Advancement of Science.