1. Nephrology Unit, “Cannizzaro” Hospital , Catania, Italy
2. Endocrinology Unit, “Cannizzaro” Hospital , Catania, Italy
3. SSD Severe Heart Failure, PO “G. Rodolico”, University of Catania , Italy
4. Nephrology, Dialysis and Transplantation Unit, Department of Emergency and Organ Transplantation, ‘Aldo Moro’ University of Bari , Piazza Giulio Cesare 11, Bari, Italy
5. Cardiology Unit, “Cannizzaro” Hospital , Catania, Italy
6. Department of Internal Medicine, UOC Medicina Interna 2 iGR, National Relevance Hospital Trust , ARNAS Civico, Di Cristina e Benfratelli, Piazza Nicola Leotta, Palermo, Italy
7. Dipartimento di Promozione Della Salute , Materno Infantile, Medicina Interna e Specialistica di Eccellenza “G. D'Alessandro”, PROMISE, , Palermo, Italy
8. University of Palermo , Materno Infantile, Medicina Interna e Specialistica di Eccellenza “G. D'Alessandro”, PROMISE, , Palermo, Italy