1. Ellen Leifer Shulman and Steven Shulman Digestive Disease Center Cleveland Clinic Florida Weston Florida USA
2. Department of Surgery and Transplantations Sheba Medical Center Ramat Gan Israel
3. Colorectal Surgery Unit, General Surgery Department Mansoura University Hospitals Mansoura Egypt
4. Department of General Surgery, Faculty of Medicine Hadassah Medical Organization, Hebrew University of Jerusalem Jerusalem Israel