1. Department of General Surgery, King Saud Medical City, Riyadh, KSA
2. Department of Diagnostic Radiology, King Fahd Central Hopital, Jazan, KSA
3. Department of General Surgery, Abu Arish General Hospital, Jazan, KSA
4. ENT Department, King Fahd Central Hospital in Jazan, Saudi Arabia
5. Department of Adult Neurology, King Faisal Specialist Hospital and Research Center, Riyadh, KSA