^○Masahiko Tanabe¹, Masato Mori¹, Yutaka Konda¹, Yuki Naruse¹, Hiroshi Okada¹, Kenichirou Ito¹, Tadashi Miyagawa², Michihiro Tanaka³ (1.Matsudo City Hospital, Pediatric Medical Centar, Pediatics, Matsudo, Japan, 2.Matsudo City Hospital, Pediatric Medical Centar, Pediatic Neurosurgery, Matsudo, Japan, 3.Kameda Medical Centar, Neurosurgery, Kamogawa, Japan)

^○Nao Suzuki, Satomi Okano, Ryosuke Tanaka, Akie Okayama, Satoru Takahashi, Hiroshi Azuma (Department of Pediatrics, Asahikawa Medical University, Asahikawa, Japan)

^○Kaori Kimura¹, Yuki Kasuga¹, Tadayasu Kawaguchi¹, Sonoko Kubota¹, Emiko Momoki¹, Yuki Kawamura¹, Wakako Ishii¹, Ayumi Fukuda¹, Yukihiko Fujita², Tatsuo Fuchigami¹, Yasuji Inamo¹, Shori Takahashi¹ (1.Department of Pediatrics and Child Health, Nihon University School of Medicine,Tokyo, Japan, 2.Division od Medical Education Planning and Development, Nihon University school of Medicine, Tokyo, Japan)

^○Sosuke Yoshikawa¹, Mitsuru Kashiwagi², Takuya Tanabe³, Koji Azumakawa⁴, Miho Fukui⁵, Shuichi Shimakawa⁵, Hiroshi Tamai⁵ (1.Department of pediatrics, Osaka Rosai Hospital, Osaka, Japan, 2.Department of pediatrics, Hirakata City Hospital, Osaka, Japan, 3.Tanabe Children's Clinic, Osaka, Japan, 4.Department of pediatrics, Seikeikai Hospital, Osaka, Japan, 5.Department of pediatrics, Osaka Medical college, Osaka, Japan)