1. From the Cardiovascular Research Institute and Department of Medicine, University of California, and the Section of Cardiology, Department of Veterans Affairs Medical Center, San Francisco, Calif (J.R.T., B.M.M.); the Biostatistics Center, University of Wisconsin, Madison, Wis (M.J., S.A.); Division of Cardiology, Mt Sinai Medical Center, New York, NY (M.L.K.); Section of Cardiology, Department of Veterans Affairs Medical Center, Dallas, Tex (E.J.E.); Cardiology Division, The Cleveland Clinic...