1. Department of Cardiology, Ziekenhuis Oost-Limburg, Genk, Belgium;
2. Doctoral School for Medicine and Life Sciences, Hasselt University, Diepenbeek, Belgium;
3. Department of Cardiovascular Medicine, Heart and Vascular Institute, Cleveland Clinic, Cleveland, OH, USA;
4. Biomedical Research Institute, Faculty of Medicine and Life Sciences, Hasselt University, Diepenbeek, Belgium