1. From the Institute of Molecular Medicine (S.W., H.C.), Peking University, Beijing, China; Division of Cardiovascular Medicine (S.W., A.G., B.C., W.K., Y.-P.X., R.M.W., M.E.A., L.-S.S.), Department of Internal Medicine, University of Iowa Carver College of Medicine, Iowa City; and Department of Veterans Affairs Medical Center (K.Z.), Iowa City, Iowa.