| Affiliation: | 1. Department of general and oncologic surgery, university of Perugia, 1, via Tristano di Joannuccio, 05100 Terni, Italy;2. General surgery unit, Andosilla hospital, Civita Castellana, VT, Italy;3. Emergency surgery and trauma surgery unit, Maggiore hospital trauma center, Bologna, Italy;4. Military medical academy, Sofia, Bulgaria;5. Department of legal medicine, university of Perugia, Terni, Italy;6. Department of surgical sciences, Sapienza university of Rome, Rome, Italy;7. Department of gastrointestinal and general surgery, medical university of Wrocław, Wrocław, Poland;8. Laparoscopic surgery unit, department of surgery, M Mellini hospital, Chiari, Italy |
