1. Upper Airways Research Laboratory, Department of Otolaryngology–Head and Neck Surgery, West China Hospital Sichuan University Chengdu Sichuan China
2. Department of Otolaryngology–Head and Neck Surgery The Third Affiliated Hospital of Sun, Yat‐Sen University Guangzhou Guangdong China
3. Department of Otolaryngology, Yong Loo Lin School of Medicine National University of Singapore National University Health System Singapore Singapore
4. Department of Otolaryngology People's Hospital of Tibet Autonomous Region Lhasa Tibet China