1 Department of Clinical Medicine and Surgery, Federico II University Hospital, Via S. Pansini, 5, Naples 80131, Italy. Electronic address: atufano@unina.it.
2 Department of Cardiology, GIGA Cardiovascular Sciences, CHU SartTilman, University of Liège Hospital, Avenue de L'Hôpital 1, Liège 4000, Belgium; Cardiology Departments, Gruppo Villa Maria Care and Research, Maria Cecilia Hospital, Italy and Anthea Hospital, Cotignola Bari, Via Corriera, 1, 48033 Cotignola RA, Via Camillo Rosalba, 35/37, Bari 70124, Italy.