1. Ellen Leifer Shulman and Steven Shulman Digestive Disease Center, Cleveland Clinic Florida, Weston, FL, USA
2. Colorectal Surgery Unit, General Surgery Department, Mansoura University Hospitals, Mansoura, Egypt
3. Department of Surgery and Transplantation, Sheba Medical Center, Ramat-Gan, Israel
4. Department of General Surgery, Hadassah Medical Organization and Faculty of Medicine, Hebrew University of Jerusalem, Jerusalem, Israel
5. Georgia Colon and Rectal Surgical Associates, Northside Hospital, Atlanta, GA, USA