^○Yuki Yokota^1,4, Kiyohiro Kim^1,2, Shintaro Mori¹, Kento Ishitani¹, Shu Hamada^1,2, Koji Kanno³, Toshiro Maihara¹ (1.Department of Pediatrics, Hyogo Prefectural Amagasaki General Medical Center,Amagasaki,Hyogo, 2.Department of Pediatric Neurology, Hyogo Prefectural Amagasaki General Medical Center,Amagasaki,Hyogo, 3.Department of Pediatric Emergency Intensive Care Unit, Hyogo Prefectural Amagasaki General Medical Center,Amagasaki,Hyogo, 4.Department of Pediatric,Hyogo Medical University,Nishinomiya,Hyogo)

^○Koshiro Fujikawa¹, Tae Ikeda¹, Hiroshi Fukumasa², Masashi Kobayashi², Masano Amamoto¹ (1.Department of Pediatric neurology, Kitakyushu City Yahata Hospital, Fukuoka, Japan, 2.Department of Pediatrics, Kitakyushu City Yahata Hospital, Fukuoka, Japan)

^○Kenta Ochiai, Taku Omata, Madoka Yasukouchi, Kentaro Sano, Megumi Shiota, Yuri Shirato, Jun-ichi Takanashi (Department of Pediatrics, Tokyo Womens Medical University Yachiyo Medical Center, Chiba , Japan)

^○Mitsuru Kashiwagi¹, Takuya Tanabe², Haruna Mitsuya¹, Chizu Oba¹, Hirokazu Kurahashi³, Akihisa Okumura³, Akira Ashida⁴ (1.Department of Pediatrics, Hirakata City Hospital, Hirakata, Japan, 2.Department of Pediatric Neurology, Tanabe Pediatric clinic, Hirakata, Japan, 3.Department of Pediatrics, Aichi Medical University, Nagakute, Japan, 4.Department of Pediatrics, Osaka Medical and Pharmaceutical University, Takatsuki, Japan)

^○Nanako Kawata¹, Hiromi Suzuki¹, Mikako Enokizono², Sahoko Miyama¹ (1.Department of Neurology, Tokyo Metropolitan Children's Medical Center, Tokyo, Japan, 2.Department of Radiology, Tokyo Metropolitan Children's Medical Center, Tokyo, Japan)

^○Ichiro Kuki¹, Kohei Matsubara¹, Risako Ishioka², Naoki Yamada¹, Masataka Fukuoka¹, Megumi Nukui^1,2, Takeshi Inoue¹, Hideo Okuno³, Kiyoko Amo³, Yasunori Otsuka⁴, Junichi Ishikawa⁵, Noritsugu Kunihiro⁶, Masao Togawa⁷, Masashi Shiomi⁸, Shin Okazaki^1,2 (1.Department of Pediatric Neurology, Osaka City General Hospital, Osaka, Japan, 2.Department of Pediatric Linguistics, Osaka City General Hospital, Osaka, Japan, 3.Department of Pediatric Emergency Medicine and Infectious Disease, Osaka City General Hospital, Osaka, Japan, 4.Department of Pediatric Intensive Care Meidicine, Osaka City General Hospital, Osaka, Japan, 5.Department of Emergency Medicine, Osaka City General Hospital, Osaka, Japan, 6.Department of Pediatric Neurosurgery, Osaka City General Hospital, Osaka, Japan, 7.Department of Pediatrics, Iseikai International General Hospital, Osaka, Japan, 8.Department of Pediatrics, Aizenbashi Hospital, Osaka, Japan)