1. Department of Cardiac Surgery, Anthea Hospital, GVM Care & Research, 70124 Bari, Italy
2. Department of Cardiac Surgery, San Carlo di Nancy, GVM Care & Research, 00165 Roma, Italy
3. Department of Cardiac Surgery, Santa Maria Hospital, GVM Care & Research, 70124 Bari, Italy
4. Department of Cardiology, Hospital of Andria, 76123 Andria, Italy
5. Cardio-Thoracic Surgery Department, Heart and Vascular Centre, Maastricht University Medical Centre (MUMC), 6229 HX Maastricht, The Netherlands