1 Department of Neurosurgery, Qilu Hospital of Shandong University and Brain Science Research Institute, Shandong University, Jinan, 250012, People's Republic of China.
2 Department of Otolaryngology, Weihai Municipal Hospital, Weihai, 264200, Shandong, People's Republic of China.
3 Department of Neurosurgery, Jining No. 1, People's Hospital, Jining, 272011, China.
4 Department of Biomedicine, University of Bergen, 5009, Bergen, Norway.
5 Department of Radiation Oncology, Qilu Hospital of Shandong University, Jinan, 250012, People's Republic of China. [email protected].