1. Department of General Surgery and Transplantation, Niguarda Ca’ Granda Hospital, Milan, Italy
2. Department of Interventional Radiology, Niguarda Ca’ Granda Hospital, Milan, Italy
3. Department of General Surgery, IRCCS Azienda Ospedaliera Universitaria San Martino, Genoa, Italy
4. School of Medicine, University of Milan-Bicocca, Milan, Italy