1. From the Departments of Epidemiology (F.B.H, M.J.S., W.C.W., J.E.M.) and Nutrition (W.K.A.-D., F.B.H., M.J.S., W.C.W.), Harvard School of Public Health, Boston, Mass; the Channing Laboratory (K.M.R., F.B.H., M.J.S., W.C.W., J.E.M.) and the Division of Preventive Medicine (K.M.R., C.M.A., J.E.M.), Department of Medicine, Brigham and Women’s Hospital; and the Cardiology Division (C.M.A.), Massachusetts General Hospital, Harvard Medical School, Boston, Mass.