1. Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China;
2. Department of Neuroelectrophysiology, Beijing Neurosurgical Institute, Beijing, China;
3. Stereotactic and Functional Neurosurgery Laboratory, Beijing Neurosurgical Institute, Capital Medical University, Beijing, China;
4. Department of Oncology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China