1. Cardiology Department, Spedali Civili Hospital University of Brescia Brescia Italy
2. Cardiology Department, Assiut University Heart Hospital Assiut University Asyut Egypt
3. Unit of Cardiology, Cardiac Electrophysiology and Electrostimulation Laboratory, “Bolognini” Hospital of Seriate ASST Bergamo Est Bergamo Italy
4. Clinical Unit Biotronik Italia Cologno Monzese Italy
5. Critical Care Department Cairo University Giza Egypt
6. Cardiology Unit Catholic University of the Sacred Heart Rome Italy
7. Cardiology Department, Al Qassimi Hospital Emirates Health Services Sharjah United Arab Emirates