Affiliation: | 1. Department of Internal Medicine, Division of Cardiology, Duke University Hospital, Durham, NC, United States;2. Department of Internal Medicine, Vanderbilt University Hospital, Nashville, TN, United States;3. Division of Cardiology, Vanderbilt University Hospital, Nashville, TN, United States;4. Department of Internal Medicine, Division of Cardiology, Wayne State University, Detroit, MI, United States;1. CNR, Institute of Clinical Physiology, Pisa, Italy;2. CNR, Institute of Clinical Physiology, Massa, Italy;1. Université Lille Nord de France/GCS-Groupement des Hôpitaux de l''Institut Catholique de Lille/Faculté Libre de Médecine, Cardiology Department, Université Catholique de Lille, 59000 Lille, France;2. Cardiology Department, CHU de Grenoble, Grenoble, France;3. Pôle Cardiovasculaire et Thoracique, Centre Hospitalier Universitaire Amiens, Amiens, France;4. INSERM U 1088, Université de Picardie, Amiens, France |