1. From the Division of Cardiology (B.G.), Oregon Health Sciences University, Portland, Ore; Baylor College School of Medicine (M.A.Q.), Houston, Tex; Dalhousie University School of Medicine (C.K.), Halifax, Nova Scotia, Canada; University of Florida College of Medicine (M.L.) (Gainesville); Robert Wood Johnson School of Medicine (D.S.), Piscataway, NJ; University of Texas School of Medicine (C.B.) (Galveston); and Department of Biostatistics (B.S.), Collaborating Studies Coordinating Center, Chapel...