1. Department of General Surgery, Faculty of Medicine, Al Baha University, Saudi Arabia
2. Department of General Surgery, Faculty of Medicine, Benha University, Egypt
3. Department of Histology and Anatomy, Faculty of Medicine, Al Baha University, Saudi Arabia
4. Department of Physiology, Faculty of Medicine, Al Baha University, Saudi Arabia
5. Department of Physiology, Damietta Faculty of Medicine, Al Azhar University, Egypt