1. From the Cardiovascular Clinical Research Center, Leon H. Charney Division of Cardiology, Department of Medicine, New York University School of Medicine, New York, NY (N.R.S., H.R.R.); Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY (A.M.M.); Duke Clinical Research Institute, Duke University Medical Center, Durham, NC (M.T.R., A.S.H., K.C.); and Division of Cardiology, Department of Medicine, University of Arizona-Phoenix (M.G.).