1. Department of Microbiology and Immunology, National Liver Institute, Egypt
2. Department of Hepatology and Gastroenterology, National Liver Institute, Egypt
3. Department of Public Health and Community Medicine, Faculty of Medicine, Egypt
4. Department of Clinical Biochemistry and Molecular Diagnostics, National Liver Institute, Egypt
5. Department of Clinical Pathology, National Liver Institute, Menoufia University, Shebeen El-Koom, Egypt