1. From the Cardiovascular Institute, Department of Medicine (L.V., S.R.M., O.C.M.), School of Medicine, University of Pittsburgh, and Department of Epidemiology (L.V., F.S., S.F.K.), Graduate School of Public Health, University of Pittsburgh, Pittsburgh, Pa; College of Nursing (K.E.K), University of South Florida, Tampa, Fla; Cardiovascular Division (R.L.W.), University of Pennsylvania, Philadelphia, Pa; Cardiology Division (J.S.), New York University Medical Center, New York, NY; Department of...