1. From the Department of Internal Medicine/Division of Cardiology, Duke University Medical Center and Duke Clinical Research Institute, Durham, NC (R.H.M., M.C., Y.X., E.D.P.); Hotchkiss Brain Institute, University of Calgary, Calgary, Alberta, Canada (E.E.S.); Department of Internal Medicine/Division of Cardiology, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA (D.L.B.); and Department of Internal Medicine/Division of Cardiology, University of California, Los Angeles (G.C.F.).