1. Anas Abdulqader Fathuldeen:
Department of Surgery, College of Medicine, University of Hail,Kingdom of,Saudi Arabia
2. Eyad Mohammed Khalifah:
Department of Surgery, College of Medicine, University of Hail,Kingdom of,Saudi Arabia
3. Fauwaz Fahad Alrashid:
Department of Surgery, College of Medicine, University of Hail,Kingdom of,Saudi Arabia
4. Ahmed Onayzan Alshammari:
Department of Surgery, College of Medicine, University of Hail,Kingdom of,Saudi Arabia
5. Ahmed Mohammed Ahmed Abdalrahaman:
Department of Surgery, College of Medicine, University of Hail,Kingdom of,Saudi Arabia
6. Abdalla Ahmed Elamin:
Department of Anatomy, College of Medicine, University of Hail,Kingdom of,Saudi Arabia
7. Saadeldin Ahmed Idris:
Department of Surgery, College of Medicine, University of Hail,Kingdom of,Saudi Arabia; Department of Surgery, Faculty of Medicine, Alzaeim Alazhari University, Khartoum, Sudan