1. Abdullah M. Assiri:
Departments of Surgery, College of Medicine, Najran University, University Of Bisha, Saudi Arabia,
2. Sultan K. Kadasah:
College of Medicine, University Of Bisha, Saudi Arabia
3. Ali M. Al-Qannass:
Departments of Otorhinolaryngology, King Khalid Hospital, Najran, Khamis Mushait, Saudi Arabia.
4. Saud abdulwahab Aldhabaan:
Armed Force Hospital, Khamis Mushait, Saudi Arabia.
5. Shahd Saeed Ali Dlboh:
Armed Force Hospital, Khamis Mushait, Saudi Arabia.
6. Adnan Q. Al-Malki:
Armed Force Hospital, Khamis Mushait, Saudi Arabia.