^○Ayako Kashimada¹, Setsuko Hasegawa¹, Takeo Isagai², Tsuyoshi Uchiyama³, Muneaki Matsuo⁴, Motoharu Kawai⁵, Masahide Goto⁶, Yukiko Hayashi⁷, Masatoshi Takagi¹ (1.Department of Pediatric & Developmental Biology, Graduate School of Med & Den Scicence, Tokyo Med & Dental University,Tokyo, Japan, 2.Dept. of Ped, Omuta City Hospital, Fukuoka, Japan, 3.Dept. of Neurol, Seirei Hamamatsu General Hospital, Shizuoka, Japan, 4.Dept. of Ped, Univ. of Saga, Saga, Japan, 5.Dept. of Neurol, Univ. of Yamaguchi, Yamaguchi, Japan, 6.Dept. of Ped, Univ. of Jichii, Tochigi, Japan, 7.Dept. Pathophysiology, Univ. of Tokyo Med, Tokyo, Japan)

^○Hideki Hoshino^1,2, Hiroshi Maruyama², Masakazu Mimaki¹ (1.Department of Pediatrics, Teikyo University,Tokyo,Japan, 2.Matsudo Clinic, Chiba, Japan)

^○Daishi Inoue^1,2, Kohei Haraguchi¹, Kaoru Moriyama¹, Tatsuharu Sato¹, Mio Yamashita^1,2, Yoshiaki Watanabe^1,3, Ichizo Nishino⁴, Hiroyuki Moriuchi¹ (1.Department of Pediatrics, Nagasaki University Hospital, Nagasaki, Japan, 2.Department of Pediatrics, Isahaya General Hospital, Nagasaki, Japan, 3.Department of Pediatrics, Nagasaki Harbor Medical Center City Hospital, Nagasaki, Japan, 4.Department of Neuromuscular Research, National Center of Neurology and Psychiatry, Tokyo, Japan)

^○Masahiro Ito, Ryutaro Yamada, Hisamitsu Tamaki (Department of Pediatrics, Tokyo Metropolitan Bokuto Hospital, Tokyo, Japan)