1 University of Rennes, CHU Rennes, Inserm, LTSI - UMR 1099, F-35000 Rennes, France. Electronic address: erwan.donal@chu-rennes.fr.
2 University of Pittsburgh Medical Center, Heart and Vascular Institute, Pittsburgh, PA, USA; Department of Cardiology, University of Baskent, Ankara, Turkey.
3 Institute of Heart Diseases, Wroclaw Medical University, Wroclaw, Poland.