1. From the Department of Surgery (B.S.Z., K.P.M., J.R., P.M.B.), Department of Pharmacology and Chemical Biology (S.S.), Division of Pulmonary, Allergy, and Critical Care Medicine (E.I., J.J.W.C., A.M.K.C., M.T.G.), and Division of Cardiology (M.A.M.), University of Pittsburgh School of Medicine, Pittsburgh, Pa; VA Pittsburgh Health Care System, Pittsburgh, Pa (B.S.Z.); Pulmonary and Vascular Medicine Branch, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, Md (S.S.,...