1. Department of Hepatology and Gastroenterology National Liver Institute Menoufia University Menoufia Egypt
2. Department of Internal Medicine Faculty of Medicine Al‐Azhar University Cairo Egypt
3. Department of Clinical Pathology Al‐Azhar University Cairo Egypt
4. Department of Tropical Medicine Faculty of Medicine Menoufia University Menoufia Egypt
5. Department of Tropical Medicine Faculty of Medicine Alexandria University Alexandria Egypt
6. Department of Internal Medicine Faculty of Medicine Helwan University Cairo Egypt
7. Department of Endemic Medicine Faculty of Medicine Helwan University Cairo Egypt
8. Department of Clinical and Chemical Pathology Faculty of Medicine Helwan University Cairo Egypt
9. Department of Epidemiology and Preventive Medicine National Liver Institute Menoufia University Menoufia Egypt