1. Hospital Clinic, Universitat de Barcelona, Barcelona, Spain
2. Institute of Sport Medicine and Science, Rome, Italy
3. St George’s Hospital NHS Trust, London, UK
4. Inst of Neuroscience and Physiology and Food, Nutrition and Sport Science and Östra University Hospital, Goteborg, Sweden
5. Hopital Pontchaillou, Rennes, France
6. Heart Center Hasselt, Hasselt, Belgium
7. Baker IDI Heart and Diabetes Institute, Melbourne, Australia
8. Yale University School of Medicine, New Haven, CT, USA
9. The Heart Hospital, University College London, London, UK
10. IRCCS Fondazione Salvatore Maugeri, Pavia, Italy
11. Instituto do Coração (InCor) do Hospital das Clinicas da Faculdade de Medicina da Universidade de Sao Paulo, Sao Paulo, Brazil
12. Hartford Hospital, Hartford, CT, USA
13. University Hospital Basel, Basel, Switzerland
14. Tel Aviv Medical Center, Tel Aviv, Israel
15. Aspetar – Sports Medicine Department, Doha, Qatar
16. University of Padova, Padova, Italy
17. University of Birmingham, Birmingham, UK
18. Eskisehir Osmangazi University, Eskisehir, Turkey
19. University Hospital in Uppsala, Uppsala, Sweden
20. Semmelweis University, Heart and Vascular Center, Budapest, Hungary
21. University of Leipzig, Heartcenter, Leipzig, Germany
22. Unidad De Arritmias, Servicio De Cardiologia, Hospital Universitario Ramón y Cajal, Madrid, Spain
23. University of Modena and Reggio Emilia, Modena, Italy
24. Cardiology Department, Care Hospital, Hyderabad, India
25. Departamento de Electrocardiología, Instituto Nacional de Cardiologia Ignacio Chavez, Tlalpan, Mexico
26. Department of Cardiovascular Medicine, Beaumont Health System, Royal Oak, MI, USA
27. University Hospitals Case Medical Center, Cleveland, OH, USA
28. University Hospital of Lausanne, Lausanne, Switzerland
29. IRCCS Rehabilitation Medical Center, Cardiology Department, Salvatore Maugeri Foundation, Veruno, Italy
30. Prevention and Sports Medicine, Technical University Munich, Munich, Germany
31. Studio Medico Sportivo, Pesaro, Italy
32. Sports Medicine, Prevention & Rehabilitation, Paracelsus Medical University, Salzburg, Austria
33. Polichirurgico Hospital G. Da Saliceto, Romagna, Italy