1. From the Department of Pharmacology (B.H., J.B., K.S.G., L.T.I., Y.C.-I., D.M.B.), School of Medicine, Dean’s Office (L.T.), Surgical Research Facility, School of Medicine (W.T.F.), Department of Biomedical Engineering (Y.C.-I.), Department of Internal Medicine/Cardiology (Y.C.-I.), University of California, Davis; Echocardiography Laboratory, University of California, Davis Medical Center, Sacramento (L.M.M.); and Department of Medicine, University of Alabama at Birmingham (S.M.P.).