1. Cardio‐Thoracic Department Electrophysiology and Electrostimulation Laboratory University of Brescia Spedali Civili di Brescia Brescia Italy
2. Cardiology Department Faculty of Medicine Alexandria University Alexandria Egypt
3. Department of Cardiology, Asst Bergamo Est Bolognini Hospital Seriate Bergamo Italy
4. Department of Cardiac Surgery Spedali Civili di Brescia University of Brescia Brescia Italy
5. Department of Cardiology Asst‐Fatebenefratelli Sacco Luigi Sacco University Hospital Milan Italy