1. From the National Heart, Lung, and Blood Institute’s Framingham Heart Study (all authors), Framingham, Mass; the Cardiology Division, Department of Medicine, Massachusetts General Hospital, Boston, Mass (C.J.O.); the Cardiology Section, Department of Medicine and Preventive Medicine Section, Boston University School of Medicine, Boston, Mass (R.S.V., D.L., E.J.B.); the Department of Mathematics, Boston University, Boston, Mass (H.P., R.D.); and the National Heart, Lung, and Blood Institute, National...