1. Division of Cardiology, University of Eastern Piedmont Maggiore della Carità Hospital Novara Italy
2. Division of Cardiology Ss. Trinità Hospital Borgomanero Italy
3. Institute of Cardiology, University of Bologna S. Orsola‐Malpighi University Hospital Bologna Italy
4. Division of Cardiology Santi Antonio e Biagio e Cesare Arrigo Hospital Alessandria Italy
5. Cardiology and Arrhythmology Clinic, Department of Biomedical Sciences and Public Health Marche Polytechnic University Ancona Italy
6. Division of Cardiology Sant'Andrea Hospital Vercelli Italy