1. Swiss Cardiovascular Centre Bern, Cardiovascular Prevention and Rehabilitation, Bern University Hospital and University of Bern, Bern, Switzerland
2. Center for Cardiac Rehabilitation, Pensionsversicherungsanstalt, St Radegund/Graz, Austria
3. Division of Cardiology, Salvatore Maugeri Foundation, IRCCS, Veruno (NO), Italy
4. Department of Cardiology, University Hospital Lariboisiere, Assistance Publique-Hopitaux de Paris, Paris, France
5. Department of Rehabilitation Sciences, K.U. Leuven (Catholic University Leuven), Leuven, Belgium