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