1. Gastroenterology Department, Galilee Medical Center, Nahariya
2. Azrieli Faculty of Medicine, Bar-Ilan University, Safed
3. Department of Surgery, Sharee Zedek Medical Center
4. Department of Surgery, Hadassah Medical Center, Jerusalem
5. Gastroenterology and Hepatology Institute, Emek Medical Center, Afula
6. Department of Surgery, Baruch Padeh Medical Center, The Azrieli Faculty of Medicine, Bar Ilan University, Poria
7. Department of Gastroenterology, Wolfson Medical Center, Holon
8. Gastroenterology, Sharee Zedek Medical Center
9. Gastroenterology Department, Hadassah Medical Center, Jerusalem
10. Department of Surgery, Galilee Medical Center, Nahariya
11. Gastroenterology Department, Bnai Zion Hospital, Haifa, Israel
12. Department of Gastroenterology Unit, Hospital of Imola, University of Bologna, Imola, BO, Italy