Hiroyuki Kidokoro¹, Mitsuo Motobayashi², Tetsuo Kubota³, Ryoko Takano², Naoko Shiba², Yoko Sakaguchi¹, Yu Okai¹, Masaharu Tanaka¹, Yuki Maki¹, Hiroyuki Yamamoto¹, Atuko Ohno¹, Tomohiko Nakata¹, Kazuhiro Muramatsu⁴, Kenji Yokochi⁵, Jun Natsume¹ (1.The Department of Pediatrics, Nagoya Universtiy Graduate School of Medicine, Nagoya, Japan, 2.The Department of Pediatrics, Shinsyu Universtiy School of Medicine, Matsumoto, Japan, 3.The Department of Pediatrics, Anjo Kosei Hospital, Anjo, Japan, 4.The Department of Pediatrics, Jichi Medical School, Tochigi, Japan)

Soichiro Ishimaru¹, SATORU KISOHARA¹, MISA MIYAKE², NAOKO ISHIHARA² (1.Department of Pediatrics, Toyokawa City Hospital, Toyokawa, Japan, 2.Department of Pediatrics, Fujita Health University School of Medicine, Toyoake, Japan)

Itaru Hayakawa, HIROSHI TERASHIMA, NAHOKO KATAYAMA-UEDA, RYOSUKE URABE, GO TAKEI, SATO SUZUKI-MUROMOTO, TETSUHARU KAMIOKA, MASAYA KUBOTA (Division of Neurology, Department of Medical Subspecialties, National Center for Child Health and Development, Tokyo, Japan)

Hiroshi Yamaguchi^1,2, YUSUKE ISHIDA^1,2, KAZUMI TOMIOKA², TSUKASA TANAKA^1,2, MASAHIRO NISHIYAMA², DAISAKU TOYOSHIMA¹, AZUSA MARUYAMA¹, HIROAKI NAGASE², SATOSHI TAKADA³, YOSHIYUKI UETANI⁴, KAZUMOTO IIJIMA² (1.Department of Neurology, Hyogo Prefectural Kobe Children's Hospital, Kobe, Japan, 2.Department of Pediatrics, Kobe University Graduate School of Medicine, Kobe, Japan, 3.Kobe University Graduate School of Health Science, Kobe, Japan, 4.Department of Emergency and General Medicine, Hyogo Prefectural Kobe Children's Hospital, Kobe, Japan, 5.The Department of Pediatrics, Seirei-Mikatagahara Hospital, Mikatagahara, Japan)

Yuji Ohuchi^1,2 (1.Department of Child Neurology, Okayama University Graduate School of Medicine,Dentistry and Pharmaceutical Sciences and Okayama University Hospital, Okayama, Japan, 2.Department of Pediatrics, Tohoku University School of Medicine, Sendai, Japan)

Tetsuo Ohyama¹, Yusuke Goto¹, Kakurou Aoyagi¹, Sayaka Ishii¹, Hideaki Kanemura¹, Masao Aihara² (1.Department of Pediatrics, University of Yamanashi, Yamanashi, Japan, 2.Graduate Faculty of Interdisciplinary Research Graduate School Yamanashi University)

Satoru Ikemoto^1,2, Shin-ichiro Hamano¹, Ryuki Matsuura^1,2, Atsuro Daida¹, Jun Kubota^1,2, Erika Hiwatari¹, Motoyuki Minamitani¹ (1.Saitama Children's Medical Center, Department of Neurology, Saitama, Japan, 2.Jikei University School of Medicine, Department of Pediatrics, Tokyo, Japan)