1. Kansai Medical University (H.T.), Osaka, Japan; Lahey Clinic Medical Center (F.J.V.), Burlington, Mass; Framingham Heart Study (H.T., M.G.L., E.S.M., J.C.E., D.L.), Framingham, Mass; National Heart, Lung, and Blood Institute (D.L.), Bethesda, Md; Brigham and Women's Hospital (C.L.F.), Boston, Mass; the Divisions of Cardiology and Clinical Epidemiology of Beth Israel Hospital (D.L.), Boston, Mass; and the Divisions of Epidemiology and Preventive Medicine of Boston University School of Medicine (D.L.)...