Ko Kudo¹, Tomohiko Sato¹, Takuya Kamio¹, Shinya Sasaki¹, Masahiro Irie², Yoji Sasahara², Masaru Imamura³, Chihaya Imai³, Kumiko Ando³, Harumi Kakuda³, Takehiko Doi⁴, Hiroshi Kawaguchi⁴, Rika Kanezaki¹, Tsutomu Toki¹, Etsuro Ito¹ (1.Dept. of Pediatrics, Hirosaki Univ., Hirosaki, Japan, 2.Dept. of Pediatrics, Tohoku Univ., Sendai, Japan, 3.Dept. of Pediatrics, Niigata Univ., Nigata, Japan, 4.Dept. of Hematology and Oncology, Chiba Children's Hospital, Chiba, Japan, 5.Dept. of Pediatrics,Hiroshima Univ., Hiroshima, Japan)

Hirotoshi Sakaguchi, Ryo Maemura, Ayako Yamamori, Nao Yoshida, Asahito Hama (Pediatric Hematology Oncology, Japanese Red Cross Nagoya First Hospital)

Daisuke Suzuki, Ryoji Kobayashi, Satoru Matsushima, Daiki Hori, Hirozumi Sano, Kunihiko Kobayashi (Department of Hematology/Oncology for Children and Adolescents, Sapporo Hokuyu Hospital)

Kosuke Akiyama¹, Shohei Yamamoto¹, Yumiko Sugisita¹, Ryota Kaneko¹, Naoko Okamoto¹, Masaya Koganesawa¹, Sachio Fujita¹, Ryosuke Matsuno¹, Daisuke Toyama¹, Yumi Hasegawa², Shiori Setoyama², Satoru Ikezawa², Takamasa Noda², Keiichi Isoyama¹ (1.Showa University Fujigaoka Hospital, Kanagawa, Japan, 2.National Center of Neurology and Psychiatry Hospital)

Ting-Chi Yeh, Jen-Yin Hou, Ting-Huan Huang, Der-Cherng Liang, Hsi-Che Liu (Division of Pediatric Hematology/Oncology, Mackay Children's Hospital, Taipei, Taiwan)

Hongmin Li, Zhangbiao Long, Yali Du, Miao Chen, Bing Han (Department of Hematology, Peking Union Medical College Hospital, CAMS & PUMC, Beijing, China)