1. Department of General Surgery, Faculty of Medicine, Zagazig University, Zagazig, Egypt
2. Department of Surgical Oncology, Oncology Center, Mansura University, Mansoura, Egypt
3. Department of Clinical Oncology and Nuclear Medicine, Faculty of Medicine, Zagazig University, Zagazig, Egypt
4. Department of Internal Medicine, Faculty of Medicine, Zagazig University, Zagazig, Egypt
5. Department of Hepatogastroenterology and Infectious Diseases Faculty of Medicine, Alazhar University, Cairo, Egypt
6. Department of Hepatology and Gastroenterology, Theodor Bilharz Research Institute, Giza, Egypt
7. Department of Tropical Medicine, Faculty of Medicine, Zagazig University, Zagazig, Egypt
8. Department of Pathology, Faculty of Medicine, Zagazig University, Zagazig, Egypt