1. Department of Neurology, Seoul National University Hospital, Seoul, Korea.
2. Department of Translational Medicine, Seoul National University College of Medicine, Seoul, Korea.
3. Department of Neurology, Ewha Womans University Mokdong Hospital, Seoul, Korea.
4. Department of Neurosurgery, Seoul National University Hospital, Seoul, Korea.
5. Neuroscience and Protein Metabolism Research Center, Seoul National University College of Medicine, Seoul, Korea.
6. Neuroscience Research Institute, Seoul National University College of Medicine, Seoul, Korea.
7. Sensory Organ Research Institute, Medical Research Center, Seoul National University College of Medicine, Seoul, Korea.