1. Department of Otolaryngology, Head Neck Surgery, The First Hospital, Shanxi Medical University, Taiyuan, Shanxi, China
2. Shanxi Key Laboratory of Otorhinolaryngology Head and Neck Cancer, Taiyuan, Shanxi, China
3. Department of Neurosurgery, Shanxi Provincial People's Hospital, Shanxi Medical University, Taiyuan, China
4. Department of Neurosurgery, Shuozhou People's Hospital, Shuozhou, China