1. Hepatology, Gastroenterology, and Infectious Diseases Department, Mahala Hepatology Teaching Hospital, Gharbia, Egypt
2. Tropical Medicine Department, Tanta University, Tanta, Egypt
3. Hepatology and Liver Transplantation Departments, National Hepatology and Tropical Medicine Research Institute, Cairo, Egypt
4. Hepatology, Gastroenterology, and Infectious Diseases Department, Benha Faculty of Medicine, Benha, Egypt
5. Department of Public Health and Community Medicine, Menofia University, Menofia, Egypt