1 Department of Otolaryngology Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Key Laboratory of Otolaryngology Head and Neck Surgery, Ministry of Education, Beijing 100730, China.
2 Civil Aviation Medical Assessment Institute, Civil Aviation Medicine Center, Civil Aviation Administration of China, Beijing 100123, China.
3 Clinical Audiology Center, Beijing Institute of Otolaryngology, Beijing Tongren Hospital, Capital Medical University, Beijing 100005, China.
4 College of Chinese Studies, Beijing Language and Culture University, Beijing 100083, China.