From the Division of Preventive Medicine and Channing Laboratory, the
Department of Medicine, Brigham and Women’s Hospital and Harvard Medical
School, Boston; the Department of Ambulatory Care and Prevention,
Harvard Medical School, Boston; the Departments of Epidemiology, Nutrition,
and Health and Social Behavior, Harvard School of Public Health,
Boston; and the Departments of Epidemiology and Public Health and Medicine,
University of Miami School of Medicine.