1. Departments of Hepatology & Gastroenterology , Theodor Bilharz Research Institute , Giza , Egypt
2. Departments of Pathology , Theodor Bilharz Research Institute , Giza , Egypt
3. Departments of Clinical Chemistry , Theodor Bilharz Research Institute , Giza , Egypt
4. Departments of Public Health , Theodor Bilharz Research Institute , Giza , Egypt
5. Department of Biological Anthropology , Medical Researches and Clinical Studies Institute, National Research Centre , Cairo , Egypt
6. Department of Medical Biochemistry , Medical Researches and Clinical Studies Institute, National Research Centre , Cairo , Egypt