1. S. Maugeri Foundation, Veruno Scientific Institute, Cardiology Division, Veruno (NO)
2. Centro Cardiologico Monzino, Institute of Cardiology, University of Milan, Milan
3. Department of Cardiology, University Denis Diderot-Hospital Lariboisiere, Assistance Publique-Hôpitaux de Paris, Paris
4. Department of Sports Medicine, Medical University, Lodz, Poland
5. Laboratory of Sports Medicine, Aristotle University, Thessaloniki, Greece
6. Institute of Medical Physiology, Faculty of Medicine, University of Belgrade, Belgrade, Serbia
7. Les Grands Prés, Cardiac Rehabilitation Center, Villeneuve Saint Denis, France
8. Heart Failure Department, Cardiology Unit, Guglielmo da Saliceto Hospital, Piacenza, Italy
9. State Hospital for Cardiology, Balatonfüred, Hungary
10. Cardiovascular Center, Onze Lieve Vrouw Ziekenhuis, Aalst
11. Department of Rehabilitation Sciences-Biomedical Sciences, KU Leuven, Leuven, Belgium