1. From the National Heart, Lung, and Blood Institute and its Framingham Heart Study (C.J.O., D.L.), Framingham, Mass; Cardiology Division, Department of Medicine (C.J.O.), Massachusetts General Hospital, Boston, Mass; the Department of Biostatistics (S.D., C.W., L.A.C.), Boston University School of Public Health, Boston, Mass; the Center of Human Development and Aging (M.K., J.P.G., A.A.), University of Medicine and Dentistry of New Jersey, Newark, NJ; the Department of Mathematics and Statistics (R.B...