1. Department of Neurosurgery, Qilu Hospital of Shandong University, Brain Science Research Institute of Shandong University, Jinan, Shandong 250012, P.R. China
2. Central Laboratory, Linyi People's Hospital of Shandong University, Linyi, Shandong 276000, P.R. China
3. Minimally Invasive and Functional Department of Neurosurgery, Linyi People's Hospital of Shandong University, Linyi, Shandong 276000, P.R. China