1. Rhinology Chair Director in King Saud University, Department of Otolaryngology, Head and Neck Surgery, King Saud University College of Medicine, Riyadh, Saudi Arabia
2. Department of Otolaryngology, Head and Neck Surgery, Prince Mohammed bin Abdulaziz Hospital, Riyadh, Saudi Arabia
3. Department of Otolaryngology, Head and Neck Surgery, Prince Sattam bin Abdulaziz University College of Medicine, Al Kharj, Saudi Arabia