1. Department of Cardiac Surgery Henry Dunant Hospital Athens Greece
2. Dipartimento di Malattie Cardiovascolari Gemelli Molise Campobasso Italia
3. Department of Cardiology “Pierangeli” Hospital Pescara Italy
4. Department of Crdiothoracic Surgery, Cardio‐Thoracic Surgery Unit, Heart and Vascular Centre, Cardiovascular Research Institute Maastricht (CARIM) Maastricht University Medical Centre (MUMC) Maastricht The Netherlands