1. Department of Head and Neck, Center of Head and Neck, and Skull Base Health Center, King Abdullah Medical City Hospital, Mecca 21955, KSA
2. Department of Otolaryngology-Head & Neck Surgery, King Fahad Armed Force Hospital, Jeddah, KSA
3. Umm Al-Qura University, Mecca 21955, KSA
4. Ain Shams University, Cairo, Egypt