1. Colorectal Surgery Division, Department of Surgery, Fondazione IRCCS Istituto Nazionale dei Tumori, 20133 Milan, Italy
2. University of Milan, 20122 Milan, Italy
3. Gastroenterology and Endoscopy Unit, Fondazione IRCCS Istituto Nazionale dei Tumori, 20133 Milan, Italy
4. General and Emergency Surgery, Sesto San Giovanni Hospital, 20099 Milan, Italy
5. Department of General Surgery, Sapienza Medical School, 00185 Rome, Italy
6. Digestive and Emergency Surgery Unit, S. Maria Hospital Trust, 05100 Terni, Italy
7. Department of Life Science, Health, and Health Professions, Link Campus University, 00165 Rome, Italy