1. From the Framingham Heart Study (J.S., D.L., P.W.F.W., R.S.V.), Framingham, Mass; the Department of Preventive Medicine (D.L., R.S.V.), Cardiology Section (R.S.V.), and Endocrinology Division (P.W.F.W.), Boston University School of Medicine, Boston, Mass; the Department of Mathematics (L.S., R.B.D.), Boston University, Boston, Mass; the Jean Mayer US Department of Agriculture Human Nutrition Research Center on Aging (P.F.J., J.S., I.H.R.), Tufts University, Boston, Mass; and the National Heart, Lung...