1. Department of Gastroenterolgy, Hepatology and Tropical Medicine; Faculty of Medicine; Ain Shams University; Cairo Egypt
2. Department of Clinical Pathology; Faculty of Medicine; Ain Shams University; Cairo Egypt
3. Department of Molecular Biology and Biochemistry; Faculty of Medicine; Ain Shams University; Cairo Egypt
4. Department of Pathology; Faculty of Medicine; Ain Shams University; Cairo Egypt
5. Department of Molecular Biology; American University; Cairo Egypt
6. Department of Bioinformatics; Faculty of Computer Science; Ain Shams University; Cairo Egypt
7. Department of Clinical Pathology; Cairo University; Cairo Egypt
8. Department of Clinical Pathology; Salman Bin Abdul Aziz University; Riyadh Saudi Arabia