1. Surgical Oncology Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
2. Department of General Surgery and Surgical Oncology, Madonna del Soccorso Hospital, San Benedetto del Tronto, Italy
3. Department of General and Endocrine Surgery, University of Insubria, Varese, Italy
4. Cambridge University Hospitals, NHS Foundation Trust, Addenbrooke’s Hospital, Cambridge, United Kingdom
5. Department of General and Transplant Surgery, Sapienza University of Rome, Rome, Italy