1. Gastroenterology and Endoscopy Unit, Fondazione Istituto G. Giglio, Contrada Pietra Pollastra Pisciotto, 90015 Cefalù, Italy
2. Euro-Mediterranean Institute of Science and Technology (IEMEST), 90100 Palermo, Italy
3. Department of Radiology, DIBIMED, University of Palermo, Via del Vespro 127, 90127 Palermo, Italy
4. Section of Cardio-Respiratory and Endocrine-Metabolic Diseases, Biomedical Department of Internal and Specialist Medicine (DIBIMIS), University of Palermo, Piazza delle Cliniche 2, 90127 Palermo, Italy
5. Internal Medicine Unit, Fondazione Istituto G. Giglio, Contrada Pietra Pollastra Pisciotto, 90015 Cefalù, Italy
6. Radiology Unit, Fondazione Istituto G. Giglio, Contrada Pietra Pollastra Pisciotto, 90015 Cefalù, Italy
7. Department of Experimental Biomedicine and Clinical Neuroscience, Section of Human Anatomy, University of Palermo, 90100 Palermo, Italy
8. BioNec, Section of Histology, Department of Experimental and Clinical Neurosciences, University of Palermo, Palermo, Italy
9. Gastroenterology Unit, PO. V. Cervello, via Trabucco, 90146 Palermo, Italy
10. Surgery Unit, Fondazione Istituto G. Giglio, Contrada Pietra Pollastra Pisciotto, 90015 Cefalù, Italy
11. Strategic Direction, Fondazione Istituto Giuseppe Giglio, Cefalù, Italy
12. Division of Vascular Surgery, Garibaldi Hospital, Catania, Italy