1. Department of Human Genetics Graduate School of Medicine Yokohama City University Yokohama Japan
2. Department of Clinical Neurology and Stroke Medicine Yokohama City University Yokohama Japan
3. Department of Pediatrics Yamagata University Faculty of Medicine Yamagata Japan
4. Division of Neurology Clinical Research Institute Kanagawa Children's Medical Center Yokohama Japan
5. Department of Pediatrics Jichi Medical School Shimotsuke Tochigi Japan
6. Department of Neurology Gunma Children's Medical Center Shibukawa Japan
7. Department of Pediatrics Epilepsy Center Nishi‐Niigata Chuo National Hospital Niigata Japan
8. Department of Pediatrics Osaka University Graduate School of Medicine Osaka Japan
9. Department of Pediatrics Hiroshima University Hospital Hiroshima Japan
10. Department of Neonatology Medical Center for Maternal and Child Health St. Mary's Hospital Kurume Japan
11. Department of Pediatrics and Child Health Kurume University School of Medicine Kurume Japan
12. Department of Pediatrics Fukuoka University Chikushi Hospital Fukuoka Japan
13. Department of Pediatric Neurology Fukuoka Children's Hospital Fukuoka Japan
14. Department of Neurology Miyagi Children's Hospital Sendai Japan