^○Eiji Nakagawa¹, Jun Tooyama², Ryutaro Kira³, Mitsugu Uematsu⁴, Shin Okazaki⁵, Hideaki Shiraishi⁶, Kazuhiro Muramatsu⁷, Kazuya Itomi⁸, Junichi Onuma⁹, Shinichiro Takeuchi⁹, Kikuo Tsukahara⁹, Katsumi Imai¹⁰ (1.National Center of Neurology and Psychiatry, Tokyo, Japan, 2.Nishiniigata Chuo Hospital, Niigata, Japan, 3.Fukuoka Children's hospital, Fukuoka, Japan, 4.Tohoku University Hospital, Miyagi, Japan, 5.Osaka City General Hospital, Osaka, Japan, 6.Hokkaido University Hospital, Hokkaido, Japan, 7.Jichi Medical University, ,Tochigi, Japan, 8.Aichi Children's Health and Medical Center, Aichi, Japan, 9.Aculys Pharma Inc., Tokyo, Japan, 10.NHO Shizuoka Institute of Epilepsy and Neurological Disorders, Shizuoka, Japan)

^○Reiko Koichihara¹, Kenjiro Kikuchi², Rikako Takeda², Hirokazu Takeuchi², Yuko Hirata², Ryuki Matsuura², Shinichiro Hamano² (1.Department of Child Health and Human Development, Saitama Children's Medical Center, Saitama, Japan, 2.Division of Neurology, Saitama Children's Medical Center, Saitama, Japan)

^○Kenji Sugai^1,2, Arai Natsuko^1,2, Asoh Masako¹, Egawa Bunsei¹ (1.Division of Pediatrics, Soleil Kawasaki Medical Center for the Disabled,Kawasaki, Japan, 2.Department of Pediatrics, St' Marianna Medical University Shool of Medicine, Kawasaki, Japan)

^○Hirokazu Takeuchi^1,2, Ryuki Matsuura^1,2, Kenjiro Kikuchi^1,2, Rikako Takeda¹, Yuko Hirata^1,2, Reiko Koichihara³, Shin-ichiro Hamano¹ (1.Division of Neurology, Saitama Childrens Medical Center, Saitama, Japan, 2.Department of Pediatrics, (The) Jikei University School of Medicine, Tokyo, Japan, 3.Division of Child Health and Human Development, Saitama Childrens Medical Center, Saitama, Japan)

^○Ryuki Matsuura¹, Shin-ichiro Hamano¹, Yuko Hirata¹, Rikako Takeda¹, Hirokazu Takeuchi¹, Reiko Koichihara², Kenjiro Kikuchi¹, Akira Oka¹ (1.Division of Neurology, Saitama Children's Medical Center, Saitama, Japan, 2.Division of Child Health and Human Development, Saitama Children's Medical Center, Saitama, Japan)

^○Mika Yamada, Yuichi Suzuki, Maki Nodera, Ichiri Sakuma, Ryosuke Watanabe, Mitsuaki Hosoya (Department of Pediatrics, Fukushima Medical University, Fukushima, Japan)