1. Research Center "The Great Senescence", University of Catania, Catania, Italy
2. Department of Biomedical and Biotechnological Science, University of Catania, Catania, Italy
3. Department of Biomedical Sciences, University of Sassari, Sassari, Italy
4. Department of Medical, Surgical Sciences and Advanced Technologies “G.F. Ingrassia”, University of Catania, Catania, Italy
5. Hepatology Unit, Department of Clinical and Experimental Medicine, University of Catania, Policlinico "G. Rodolico", Catania, Italy
6. Department of Surgery, University of Pisa, Pisa, Italy
7. Department of General Surgery and Medical-Surgery Specialties, University of Catania, Catania, Italy