1. Division of Otolaryngology-Head and Neck Surgery, Department of Surgery, King Abdulaziz Medical City, Ministry of National Guard Health Affairs, Riyadh, Saudi Arabia
2. College of Medicine, Imam Abdulrahman bin Faisal University, Dammam, Saudi Arabia
3. Division of Ophthalmology, Department of Surgery, King Abdulaziz Medical City, Ministry of National Guard Health Affairs, Riyadh, Saudi Arabia
4. College of Medicine, King Saud bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia