1. From Brigham and Women’s Hospital (J.J.P., R.E.K.), Boston, Mass; University of Maryland (M.S.), Baltimore, Md; Lenox Hill Hospital (A.J.L.), New York, NY; Phoenix Heart Center (R.R.H., B.S.), Phoenix, Ariz; Scripps Clinic (P.S.T., V.M.), La Jolla, Calif; University of Florida (T.B., R.H.), Jacksonville; Dr. Mueller Hospital (S.S., P.v.R.), Munich, Germany; Montreal Heart Institute (R.B.), Montreal, Canada; Beth Israel Deaconess Medical Center (K.K.L.H.), Boston, Mass; and Harvard Clinical Research...