1. Department of General Surgery and Surgical Oncology , King Khalid Hospital , Najran , Saudi Arabia
2. Department of Surgical Oncology , Cancer Institute Montpellier (ICM) , Montpellier , France
3. University of Montpellier , Montpellier , France
4. Department of Surgical Oncology , Gifu University School of Medicine , Gifu , Japan
5. Department of Gastroenterological Surgery , Graduate School of Medicine, Osaka University , Suita, Osaka , Japan
6. Department of Surgical Oncology , The University of Tokyo , Tokyo , Japan
7. Division of Colon and Rectal Surgery , Mayo Clinic , Rochester , MN , USA
8. Department of Visceral Surgery , Lausanne University Hospital CHUV, University of Lausanne (UNIL) , Lausanne , Switzerland