1. Department of Cardiology-Electrophysiology, University Hospital Gasthuisberg, Leuven, Belgium.
2. Department of Cardiology, Radboud University Hospital, Nijmegen
3. Department of Sports Cardiology and Cardiac Rehabilitation, St Maartenskliniek, Nijmegen, The Netherlands
4. Departments of Cardiology and Pathology, University of Padova, Padua, Italy
5. Departments of Cardiology and Pneumology, Hospital München-Bogenhausen, Munich, Germany
6. National Institute of Sports Medicine, Italian National Olympic Committee, Rome
7. Department of Cardiology, Civil Hospital, Conegliano, Italy
8. Department of Cardiology, University Hospital Uppsala, Uppsala, Sweden
9. Department of Rehabilitation Sciences, University of Leuven, Leuven, Belgium
10. Department of Heart Disease, Haukeland University Hospital, Bergen, Norway.