1. From the Institute for Clinical Research and Health Policy Studies (I.P., C.H.S.) and Molecular Cardiology Research Institute (G.S.H., R.D.P., R.H.K., M.E.M.), Tufts-New England Medical Center, Boston, Mass; the Center for Cancer Research (A.M.S., D.E.H.), Massachusetts Institute of Technology, Cambridge; National Heart, Lung, and Blood Institute’s Framingham Heart Study (R.S.V., E.J.B.), Framingham, Mass; the Biostatistics Department (L.A.C., S.D.), Boston University School of Public Health, Mass;...