1. Department of Anatomy and Embryology, Faculty of Medicine, University of Mansoura, Mansoura, Egypt
2. Department of Anatomy, College of Medicine, University of Bisha, Bisha, Saudi Arabia
3. Department of Internal Medicine, Faculty of Medicine, University of Mansoura, Mansoura, Egypt
4. Head of Egyptian Liver Research Institute and Hospital (ELRIAH), Mansoura, Egypt