1. Department of Neurosurgery, Seoul National University College of Medicine, Seoul, Korea.
2. Neuroscience Research Institute, Seoul National University Medical Research Center, Seoul, Korea.
3. Clinical Research Institute, Seoul National University Hospital, Seoul, Korea.
4. Department of Pathology, Seoul National University Hospital, Seoul, Korea.
5. Department of Brain and Cognitive Sciences, Seoul National University College of Natural Sciences, Seoul, Korea.