1. Department of Otorhinolaryngology—Head and Neck Surgery, General Hospital of Ningxia Medical University, Yinchuan, Ningxia, China
2. Department of Otorhinolaryngology—Head and Neck Surgery, Renmin Hospital, Hubei University of Medicine, Shiyan, Hubei, China
3. Department of Otorhinolaryngology, China Medical University Hospital, Taichung