1. From New York–Presbyterian Hospital and the Cardiovascular Research Foundation (G.W.S.) and Columbia University Medical Center (G.W.S., S.O.M.), New York; Advanced Heart Failure, Vanderbilt Heart and Vascular Institute, Nashville (J.L.); the Departments of Medicine, Physiology, and Cell Biology, Division of Cardiovascular Medicine, and the Davis Heart and Lung Research Institute, Ohio State University, Columbus (W.T.A.), the Department of Cardiovascular Medicine, Heart and Vascular Institute, Cleveland...