1. From the Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, Mass (F.M.S., M.A.P., E.B.); University of Texas School of Public Health, Houston (L.A.M., B.R.D.); Washington University, St Louis, Mo (T.G.C.); Montreal Heart Institute, Montreal, Quebec, Canada (J.L.R.); and State University of New York Health Sciences Center, Syracuse (D.T.N.).