1. Medical School of Chinese PLA, Beijing, China
2. The First Medical Center, Chinese PLA General Hospital, Beijing, China
3. College of Otolaryngology Head and Neck Surgery, Chinese PLA General Hospital, Beijing, China
4. National Clinical Research Center for Otolaryngologic Diseases, Beijing, China
5. Ministry of Education, State Key Lab of Hearing Science, Beijing, China
6. Beijing Key Lab of Hearing Impairment Prevention and Treatment, Beijing, China