1. From Cardiovascular Engineering Inc, Norwood, MA (A.A.T., G.F.M.); Data Coordinating Center, Boston University School of Public Health, MA (N.W.); Department of Mathematics and Statistics, Boston University, MA (M.G.L.); National Heart, Lung, and Blood Institute’s Framingham Study, MA (M.G.L., D.L., E.J.B., R.S.V.); Evans Department of Medicine (N.M.H., J.A.V., E.J.B., R.S.V.), Whitaker Cardiovascular Institute (N.M.H., J.A.V., E.J.B., R.S.V.), and Preventive Medicine and Cardiology Sections (E.J.B....