1. Department of Otolaryngology, Qilu Hospital, Shandong University, Jinan, China
2. Department of Neurosurgery, Qilu Hospital of Shandong University and Brain Science Research Institute, Shandong University, Jinan, China
3. Key Laboratory of Otolaryngology, Chinese Ministry of Health, Jinan, China
4. Department of Biomedicine, University of Bergen, Bergen, Norway
5. Institute of Basic Medical Sciences, Qilu Hospital of Shandong University, Jinan, China