1. Department of Otolaryngology—Head and Neck Surgery, Schulich School of Medicine and Dentistry, Western University, London, Canada.
2. Department of Otorhinolaryngology—Head and Neck Surgery and King Abdul-Aziz University, Jeddah, Saudi Arabia.
3. Department of Medicine, King Abdul-Aziz University, Jeddah, Saudi Arabia.
4. Department of Plastic and Reconstructive Surgery, Schulich School of Medicine and Dentistry, Western University, London, Canada.