1. Ellen Leifer Shulman and Steven Shulman Digestive Disease Center, Weston, FL, USA
2. Department of General Surgery, Shaare Zedek Medical Center, Faculty of Medicine, Hebrew University of Jerusalem, Jerusalem, Israel
3. Department of General and Minimally-Invasive surgery, Aurelia Hospital, Rome, Italy
4. Department of Pathology, Cleveland Clinic Florida, Weston, FL, USA