1. Department of Cardiovascular Sciences University of Leuven Leuven Belgium
2. Department of Cardiology University Hospitals Leuven Leuven Belgium
3. Department of Medical Statistics University Medical Center Göttingen Gottingen The Netherlands
4. Department of Physiology University Medical Center Utrecht, UMCU Utrecht The Netherlands
5. Department of Cardiology Attikon University Hospital, AUH Athens Greece
6. Department of Cardiology Heart Centre University Medical Center Göttingen Gottingen The Netherlands