1. Juliet Keidan Institute of Pediatric Gastroenterology Hepatology and Nutrition, Shaare Zedek Medical Center, Hebrew University of Jerusalem, Israel
2. Meuhedet Health Services, Meuhedet Research Institute, Tel-Aviv, Israel
3. Maccabi Health Services, Maccabi Research Institute, Tel-Aviv, Israel
4. Sackler Faculty of Medicine, Tel Aviv University, Israel
5. Israel Defense Forces Medical Corps, Department of Medical Services, Jerusalem, Israel
6. Hadadsah-Hebrew University Medical Center, Institute of Gastrointestinal and Liver Diseases, Jerusalem, Israel
7. Division of Gastroenterology, Rabin Medical Center, Petah Tikva, Israel, and Sackler Faculty of Medicine, Tel Aviv University, Israel
8. Clalit Health Services, Clalit Research Institute, Tel-Aviv, Israel
9. Leumit Health Services, Leumit Research Institute, Tel-Aviv, Israel
10. Department of Statistics and Operations Research, Tel Aviv University, Israel
11. Institute of Gastroenterology and Liver Diseases, E. Wolfson Medical Center, Holon, Israel, and Sackler Faculty of Medicine, Tel Aviv University, Israel
12. Department of Gastroenterology and Hepatology, Soroka Medical Center, Ben-Gurion University of the Negev, Beer Sheva, Israel
13. Technion Israel Institute of Technology, Department of Gastroenterology, Rambam Healthcare Campus, Bruce Rappaport School of Medicine, Haifa, Israel