1. Neurosurgical Department, Beijing Tsinghua Changgung Hospital, Beijing 102218, China
2. Beijing Neurosurgery Institute, Capital Medical University, Beijing 100070, China
3. Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing 100070, China
4. China National Clinical Research Center for Neurological Diseases, Beijing Tiantan Hospital, Capital Medical University, Beijing 100070, China
5. Brain Tumor Center, Beijing Institute for Brain Disorders, Beijing 100070, China