1. Department of Cardiothoracic and Vascular Medicine; Dell'Angelo Hospital; Mestre-Venice Italy
2. Arrhythmology Department; Villa Maria Cecilia Hospital; Cotignola Italy
3. Department of Heart; Brain and Vessels; Ospedale di Circolo- University of Insubria; Varese Italy
4. Department of Tachyarrhythmias Treatment; Bakoulev Center for Cardiovascular Surgery; Moscow Russian Federation
5. Département de Cardiologie; CHU de Nancy; Hôpital de Brabois; Nancy France
6. Cardiology Department; AK St. Georg; Hamburg Germany
7. Institute of Medicine, Department of Heart Disease, Haukeland University Hospital; University of Bergen; Bergen Norway
8. Department of Cardiology; Geneva University Hospital; Geneva Switzerland
9. Cardiac Arrhythmia Unit, Grupo Hospital de Madrid; Universidad CEU-San Pablo; Madrid Spain
10. First Department of Cardiology; Evangelismos General Hospital; Athens University School of Medicine; Athens Greece
11. Heart Rhythm Management Center; Cardiovascular Division; UZ Brussels Belgium
12. Department of Cardiology; Hacettepe University; Ankara Turkey
13. Department of Cardiology; Clinic Emergency Hospital; Bucharest Romania
14. Department of Cardiology; University Medical Center; Ljubljana Slovenia
15. Arrhythmia and Electrophysiology Center; IRCCS Policlinico San Donato; Milan Italy