MD, Harvard; MHS in Epidemiology, Johns Hopkins School of Public Health; studies in Internal Medicine, Harvard and Ophthalmology, Johns Hopkins. 1990-2005, Dean, Johns Hopkins Bloomberg School of Public Health. Member of the Board: Becton Dickinson; T. Rowe Price Group; Int'l Council of Ophthalmology. Chair, Albert and Mary Lasker Foundation. Member: National Academy of Sciences; Institute of Medicine. Advisory Committees: WHO; UNICEF; National Institutes of Health. Recipient of awards. Expertise/interests incl.: medical and public health research related to blindness prevention; child and maternal survival; evidence-based medicine and clinical guidelines; outcome of health systems; delivery and financing of healthcare.