1. Department of Pediatrics, Haeundae Paik Hospital, Inje University College of Medicine, Busan, Korea.
2. Department of Medicine, The Graduate School, Yonsei University, Seoul, Korea.
3. Division of Pediatric Neurology, Department of Pediatrics, Pediatric Epilepsy Clinic, Severance Children's Hospital, Epilepsy Research Institute, Yonsei University College of Medicine, Seoul, Korea.
4. Department of Radiology, Yonsei University College of Medicine, Seoul, Korea.