1. Department of Cardiology; Ziekenhuis Oost-Limburg; Schiepse Bos 6 3600 Genk Belgium
2. Doctoral school for Medicine and Life Sciences; Hasselt University; Diepenbeek Belgium
3. Biomedical Research Institute, Faculty of Medicine and Life Sciences; Hasselt University; Diepenbeek Belgium
4. Department of Cardiovascular Diseases; University Hospital Gasthuisberg; KU Leuven Leuven, Belgium
5. Department of Cardiovascular Medicine; Heart and Vascular Institute, Cleveland Clinic; Cleveland OH USA