1. The First Affiliated Hospital of Fujian Medical University, Fuzhou, PR China
2. Department of Otolaryngology-Head and Neck Surgery, the Sixth Medical Center of PLA General Hospital, Beijing, PR China
3. National Key Laboratory of Hearing and Balance Science, Beijing, PR China
4. National Clinical Research Center for Otolaryngologic Diseases, Beijing, PR China
5. Beijing Key Lab of Hearing Impairment Prevention and Treatment, Beijing, PR China