1. Department of Surgery, Ears Nose and Throat Unit, Unaizah College of Medicine and Medical Sciences, Qassim University, Unaizah
2. Department of Otolaryngology Head and Neck Surgery, College of Medicine, Qassim University, Qassim
3. Medical intern, Unaizah College of Medicine and Medical Sciences, Qassim University, Unaizah
4. Department of otolaryngology-Head and Neck Surgery, King Saud Medical City, Riyadh
5. Department of Family and Community Medicine, Unaizah College of Medicine and Medical Sciences, Qassim University, Unaizah, Kingdom of Saudi Arabia