1University of Turin, Department of Oncology, San Luigi University Hospital, Div of Surgical Oncology, Orbassano, Turin, Italy
2Clinica Chirurgica Universita’ Politecnica delle Marche, Ospedali Riuniti, Ancona, Italy
3BSIT, Department of Oncology, University of Turin, Orbassano, Turin, Italy
4Department of Surgery, S. Croce e Carle Hospital, Cuneo, Italy
5Department of General and Emergency Surgery, Azienda Ospedaliero Universitaria, Città della Salute e della Scienza, Turin, Italy
6Colorectal Surgical Oncology, Abdominal Oncology Department, Fondazione Giovanni Pascale IRCCS, Naples, Italy
7Colon and Rectal Surgery Division, Humanitas Clinical and Research Center, Via Alessandro Manzoni, 56, Rozzano, 20089 Milan, Italy
8Division of Gastrointestinal Surgery, Vita Salute University, San Raffaele Hospital, 20132 Milan, Italy
9Unita’ Operativa di chirurgia generale, d’urgenza e nuove tecnologie, OCSAE, Azienda Ospedaliero Universitaria di Modena, Modena, Italy
10Department of Clinical Medicine and Surgery, Department of Gastroenterology, Endocrinology and Endoscopic Surgery, University of Naples “Federico II”, Naples, Italy
11General Surgery Unit, Santa Maria della Misericordia Hospital, Rovigo, Italy
12S.C. Chirurgia Generale, Ospedale S. Andrea, Vercelli, Italy
13Chirurgia Coloproctologica-AOU Cagliari, Dipartimento di Scienze Chirurgiche, Università di Cagliari, Cagliari, Italy
14UOC Chirurgia Generale, Ospedale S. Eugenio, Piazzale dell’Umanesimo, 10, 00144 Rome, Italy
15Unità Operativa Complessa di Chirurgia Generale, P.O. SSG, ASST NORD MILANO, Milan, Italy
16Surgical Oncology Surgery, IRCCS Policlinico San Martino, Genoa, Italy
17Department of General and Oncological Surgery, ”Umberto I” Mauriziano Hospital, Turin, Italy
18SCDU Clinica Chirurgica, General Surgery Department, AOU “Maggiore Della Carità” Hospital, Novara, Italy
19Department of Surgical, Oncological, and Gastroenterological Sciences, University of Padua, Padua, Italy
20Department of Surgery, General Surgery Unit, Hospital of Biella, Biella, Italy
21Department of Surgical Morphology and Experimental Medicine, AOU Ferrara, Ferrara, Italy
22General Surgery Division, “Valli del Noce” Hospital, Cles, Provincial Agency for Health Services (APSS), Trento, Italy
23Gastrointestinal Surgery, San Raffaele Hospital, 20132 Milan, Italy
24Division of General and Robotic Surgery, Dipartimento di Scienze della Salute, Università di Milano, 20142 Milan, Italy
25General Surgery Unit, San Leonardo Hospital, ASL-NA3sud, Castellammare di Stabbia, Naples, Italy
26Fondazione Policlinico Gemelli, IRCCS, AREA di Chirurgia Addominale, Rome, Italy
27Surgical Department, Edoardo Agnelli Hospital, Pinerolo, Italy
28UOC General and Oncological Surgery, University of Siena, Siena, Italy
29General and Oncologic Surgery, Morgagni-Pierantoni Hospital, Ausl Romagna, Forlì, Italy
30Fondazione Policlinico Universitario A. Gemelli, IRCCS, Chirurgia Generale Presidio Columbus, Rome, Italy
31UOC di Chirurgia, Ospedale “San Camillo”, Trento, Italy
32Department of Surgery, Misericordia Hospital, Grosseto, Italy
33Department of Surgical Oncology, CRO Aviano, National Cancer Institute, IRCCS, Aviano, Italy
34UOC Chirurgia Generale, Ospedale S. Eugenio, Piazzale dell’umanesimo, 10, 00144 Rome, Italy
35IRCCS Humanitas Research Hospital, Via Manzoni 56, 20089 Rozzano, Milan Italy
36Department of Biomedical Sciences, Humanitas University, Via Rita Levi Montalcini 4, 20072 Pieve Emanuele, Milan Italy
37Oncological Surgery, Candiolo Cancer Institute-FPO-IRCCS, Candiolo, 10060 Torino, Italy
38Department of Oncology, Head Surgical Oncology and Digestive Surgery, University of Torino, San Luigi University Hospital, Regione Gonzole 10 Orbassano, 10043 Turin, Italy