1. Research & Development Dept., Biotechnology Research Center, New Damietta, Egypt
2. Faculty of Medicine, Dept. of Endemic Medicine and Hepatology, Cairo University, Cairo, Egypt
3. Faculty of Science, Helwan University, Cairo, Egypt
4. Faculty of Medicine, Dept. of Clinical and Chemical Pathology, Cairo University, Cairo, Egypt
5. National Hepatology and Tropical Medicine Research Institute, Cairo University, Cairo, Egypt