1. Department of Neurosurgery, Seoul National University College of Medicine, Seoul National University Hospital, Seoul, Korea
2. Biomedical Research Institute, Seoul National University Hospital, Seoul, Korea
3. Department of Internal Medicine, Seoul National University College of Medicine, Seoul National University Hospital, Seoul, Korea
4. Cancer Research Institute, Seoul National University College of Medicine, Seoul, Korea
5. Department of Neurology, Seoul National University College of Medicine, Seoul National University Hospital, Seoul, Korea
6. Department of Radiology, Seoul National University College of Medicine, Seoul National University Hospital, Seoul, Korea
7. Department of Pathology, Seoul National University College of Medicine, Seoul National University Hospital, Seoul, Korea
8. Neuroscience Institute, Seoul National University College of Medicine, Seoul, Korea
9. Department of Radiation Oncology, Seoul National University College of Medicine, Seoul National University Hospital, Seoul, Korea