1. Institut Universitaire de Cardiologie et de Pneumologie de Québec/Québec Heart and Lung Institute, Department of Medicine, Université Laval, 2725 Chemin Sainte-Foy, Pavillon A Québec city, Québec, Canada
2. Department of Cardiology, Leiden University Medical Center, Albinusdreef 2, RC Leiden, The Netherlands