1. Department of Arrhythmia and Electrophysiology and Experimental Cardiology IRCCS Fondazione Policlinico ‘S. Matteo’ Pavia Italy
2. Division of Cardiology Castrovillari Hospital Cosenza Italy
3. Unità Operativa di Elettrofisiologia, ‘Studio e Terapia delle Aritmie’ Monaldi Hospital Naples Italy
4. Division of Second Cardiology, Department of Cardio‐Thoracic and Vascular University Hospital of Pisa Pisa Italy
5. Department of Cardiology ‘San Giovanni Battista’ Hospital Foligno Italy
6. Cardiology, Department of Clinical and Molecular Medicine, ‘St. Andrea’ Hospital Sapienza University Rome Italy
7. Department of Cardiology ‘Santa Maria della Pietà’ Hospital, Casoria Napoli Italy
8. University of Florence Florence Italy
9. Department of Cardiology, Arrhythmology Unit Terni Hospital Italy
10. Division of Cardiology, Divisiono of Hospital Cardiology ‘Giovan Battista Grassi’ Hospital Rome Italy
11. Department of Medicine, Cardiovascular Section ‘San Eugenio’ Hospital Rome Italy
12. Department of Cardiology Istituto Clinico ‘Sant'Ambrogio’ Milan Italy
13. Division of Cardiology A.O. ‘Brotzu’ Cagliari Italy
14. Division of Cardiology ‘San Luca’ Hospital Lucca Italy
15. Boston Scientific Milan Italy