From the Duke Clinical Research Institute, Duke University Medical Center, Durham, NC (M.T.R., E.M.O., S.R.S.); Division of Cardiology, Department of Medicine, Duke University School of Medicine, Durham, NC (M.T.R., E.M.O.); Division of Cardiology, Department of Medicine, St. Michael’s Hospital, Toronto, ON, Canada (S.G.G.); Cardiovascular Clinical Research Center, Leon H. Charney Division of Cardiology, New York University School of Medicine and NYU Langone Medical Center, New York (J.S.H.);... (At 2013-08-20)