1. From the Framingham Heart Study of the National Heart, Lung and Blood Institute and Boston University School of Medicine, Framingham, MA (S.C., M.G.L., E.L.M., C.S.F., C.J.O., R.S.V., T.J.W.); Cardiology Division (S.C., G.D.L., E.L.M., D.S., M.J.P.. L.D.R., A.D., C.J.O., R.E.G., T.J.W.), Cardiovascular Research Center (R.E.G., T.J.W.), Cardiovascular Research Center (E.P.R., G.D.L., R.E.G.), and Renal Division (E.P.R.), Massachusetts General Hospital, Harvard Medical School, Boston, MA; Division of...