1. From the Lifespan Cardiovascular Research Center, the Warren Alpert School of Medicine, Brown University and Providence Veterans Administration Medical Center, Providence, RI (G.G., A.X., E.-M.J., L.G., M.L., K.-C.Y., S.C.D.); and Division of Cardiovascular Medicine, Department of Medicine, University of Wisconsin School of Medicine and Public Health, Madison, WI (J.Z., A.M.H., T.J.K.).