1. Stroke & Stem Cell Laboratory in Clinical Research Institute, Stem Cell Research Center, Department of Neurology, Seoul National University, Seoul, Korea.
2. Program in Neuroscience, Neuroscience Research Institute of SNUMRC, Seoul National University, Seoul, Korea.
3. Comprehensive Epilepsy Center, Seoul National University Hospital, Seoul, Korea.
4. Department of Neurology, Seoul Paik Hospital, Inje University College of Medicine, Seoul, Korea.
5. Department of Neurosurgery, Seoul National University Hospital, Seoul, Korea.