aDepartment of Pediatrics, Seoul National University College of Medicine, Seoul National University Children's Hospital bDepartment of Genomic Medicine, Seoul National University Hospital, Seoul, South Korea Received 23 October 2023 Accepted 26 December 2023. Correspondence to Seungbok Lee, MD, PhD, Division of Pediatric Neurology, Department of Pediatrics and Department of Genomic Medicine, Seoul National University Hospital, 101 Daehakro Jongno-gu, Seoul, Korea 03080, Tel: +82 2 2072 4538; fax: +82 2 743 3455; e-mail: [email protected]