1. Otolaryngology Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing, China.
2. Beijing Institute of Otolaryngology, Beijing, China.
3. Key Laboratory of Otolaryngology Head and Neck Surgery, Ministry of Education, Beijing, China.
4. Otolaryngology Head and Neck Surgery, Affiliated Hospital of North Sichuan Medical College, Nanchong, China.
5. College of Otolaryngology Head and Neck Surgery, Chinese PLA General Hospital, Beijing, China.
6. National Clinical Research Center for Otolaryngologic Diseases, Beijing, China.