1. Department of ENT, King Saud University, Alkharj, Saudi Arabia
2. Otolaryngology, Head and Neck Department, King Abdulaziz University Hospital, Alkharj, Saudi Arabia
3. Department of Otolaryngology, King Fahad Medical City, Alkharj, Saudi Arabia
4. Department of Otolaryngology, King Saud University, Alkharj, Saudi Arabia
5. Medical College, Prince Sattam bin Abdulaziz University, Alkharj, Saudi Arabia