1. Department of Gastroenterology and Hepatology, The Barzilai Medical Center, Faculty of Health Sciences
2. Clinical Research Center, Soroka University Medical Center and Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva
3. Department of Internal Medicine, Kaplan Medical Center, Hebrew University
4. Department of Internal Medicine, The Asaf Harofe Medical Center, Faculty of Health Sciences, Tel Aviv University, Rehovot
5. Department of Pathology, Soroka University Medical Center, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva
6. Department of Gastroenterology and Hepatology, Soroka University Medical Center, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva
7. Liver Unit. Clalit Medical Services, Ashkelon
8. Department of Gastroenterology and Hepatology, Kaplan Medical Center, Hebrew University, Jerusalem; Israel