1. Department of Gastroenterology, Hepatology and Endemic Medicine Faculty of Medicine Minia University Minia Egypt
2. Tropical Medicine Department Faculty of Medicine Ain Shams University Egypt
3. Egyptian Association for the Study of Liver and Gastrointestinal Disease (EASLGD) Police Medical Academy Cairo Egypt
4. Department of Hepatology and gastroenterology Faculty of Medicine Banha University Banha Egypt
5. Department of Tropical Medicine and Gastroenterology Faculty of Medicine South Valley University Qena Egypt
6. Department of Tropical Medicine and Gastroenterology Faculty of Medicine Fayoum University Faiyum Egypt
7. Department of Medicine University of Jeddah Jeddah Kingdom of Saudi Arabia
8. Department of Hepatology NTHMRI Cairo Egypt
9. Department of Gastroenterology, Hepatology and Endemic Medicine Faculty of Medicine Beni Suef University Beni Suef Egypt