Affiliation: | 1. Department of Pediatrics, Pediatric Clinical Neuroscience Center, Seoul National University Children's Hospital, Seoul National University College of Medicine, Seoul, Korea;2. Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul, Korea;3. Department of Pediatrics, Gachon University Gil Medical Center, Incheon, Korea;4. Department of Pediatrics, Cancer Research Institute, Seoul National University College of Medicine, Seoul National University Children's Hospital, Seoul, Korea;5. Department of Pathology, Seoul National University, College of Medicine, Seoul, Korea;6. Correspondence to:;7. Jong‐Hee Chae, M.D., Ph.D., Division of Pediatric Neurology, Department of Pediatrics, Pediatric Clinical Neuroscience Center, Seoul National University Children's Hospital, 101 Daehakro Jongno‐gu, Seoul 110‐744, Korea.;8. E‐mail: |