1. Department of Precision and Regenerative Medicine and Ionian Area (DiMePre-J), University Medical School of Bari, 70124 Bari, Italy
2. General and Endocrine Surgery Unit, S. Maria University Hospital, University of Perugia, 05100 Terni, Italy
3. Division of Endocrine and Metabolic Surgery, Fondazione Policlinico Universitario “Agostino Gemelli” IRCCS, 00168 Rome, Italy
4. General Oncology and Mini-Invasive Surgery Department, ASST Grande Ospedale Metropolitano Niguarda, 20162 Milan, Italy
5. Endocrine Surgery Unit, Department of Surgery, Oncology and Gastroenterology, University of Padua, 35143 Padua, Italy
6. Department of Surgical Sciences, University of Cagliari, 09124 Cagliari, Italy
7. Department of Surgical Sciences, Molinette Hospital, University of Turin, 10126 Turin, Italy
8. Department of Medico-Surgical Sciences and Biotechnologies, Sapienza University, 00185 Rome, Italy
9. Digestive Surgery Unit, Department of Experimental and Clinical Medicine, University of Florence, 50134 Florence, Italy
10. Division of General, Oncological, Mini-Invasive and Obesity Surgery, Department of Medical and Traslational Sciences, University of Campania “Luigi Vanvitelli”, 80138 Naples, Italy
11. Department of Surgical Sciences, Sapienza University, 00185 Rome, Italy
12. UOC Chirurgia Endocrina e Metabolica, Fondazione Policlinico Universitario “Agostino Gemelli” IRCCS, 00168 Rome, Italy
13. Centro di Ricerca in Chirurgia delle Ghiandole Endocrine e dell’Obesità, Università Cattolica del Sacro Cuore, 00168 Rome, Italy
14. Head and Neck Surgery Department, San Paolo Hospital, 20142 Milan, Italy
15. Department of General and Specialist Surgery, Parma University Hospital, University of Parma, 43126 Parma, Italy
16. Division of Surgery, Istituto Auxologico Italiano IRCCS, 20122 Milan, Italy
17. Department of Pathophysiology and Transplantation, University of Milan, 20122 Milan, Italy
18. Department of Medical, Surgical and Health Sciences, University of Trieste, 34125 Trieste, Italy
19. Department of Advanced Medical and Surgical Sciences, University of Campania L. Vanvitelli, 80138 Naples, Italy
20. Department of Human Pathology in Adulthood and Childhood “G. Barresi”, University Hospital “G. Martino”, 98125 Messina, Italy
21. Department of Surgery, Legnano Hospital, 20025 Legnano, Italy
22. Department of General and Speciality Surgery, Sapienza University, 00185 Rome, Italy
23. Department of Surgical Oncological and Oral Sciences, University of Palermo, 90127 Palermo, Italy
24. Unit of Endocrine Surgery, AOU “Dulbecco”, University “Magna Graecia” of Catanzaro, 88100 Catanzaro, Italy
25. Endocrine Surgery Unit, Department of Surgical, Medical and Molecular Pathology and Critical Area, University Hospital of Pisa, 56121 Pisa, Italy
26. Unit of General Surgery, Emergency and New Technologies, Modena Hospital, 41126 Modena, Italy
27. Surgical Unit of General Surgery, “San Biagio” Hospital, 28845 Domodossola, Italy
28. Candiolo Cancer Institute, Fondazione Piemontese per l’Oncologia, 10060 Candiolo, Italy
29. Unit of Pathology, Department of Precision and Regenerative Medicine and Ionian Area (DiMePre-J), University Medical School of Bari, 70124 Bari, Italy
30. Department of Surgery-ASL TO4, Ivrea Hospital, 10015 Ivrea, Italy
31. Department of Surgery, Sapienza University, 00185 Rome, Italy
32. Department of Medical and Surgical Sciences and Advanced Technologies, University of Catania, 95100 Catania, Italy