1. Structural Interventional Cardiology, Department of Clinical and Experimental Medicine, Clinica Medica, Careggi University Hospital, 50134 Florence, Italy
2. Oxford Heart Centre, Oxford University Trust, Oxford OX3 9DU, UK
3. Department of Medicine, Surgery and Dentistry, University of Salerno, Baronissi, Salvador Allende Street 43, 84081 Salerno, Italy
4. Department of Advanced Biomedical Sciences, University Federico II, 80138 Naples, Italy
5. Division of Cardiology, Cardiovascular and Thoracic Department, San Giovanni di Dio e Ruggi d’ Aragona University Hospital, 84131 Salerno, Italy