Motohiro Kato^1,2, Tomoo Osumi^1,2, Shin-Ichi Tsujimoto^1,2, Moe Tamura³, Meri Uchiyama², Kazuhiko Nakabayashi⁴, Kohji Okamura⁴, Masanori Yoshida², Daisuke Tomizawa¹, Akihiro Watanabe⁵, Hiroyuki Takahashi⁶, Tsukasa Hori⁷, Shohei Yamamoto⁸, Kazuko Hamamoto⁹, Masahiro Migita¹⁰, Hiroko Ogata⁴, Toru Uchiyama¹¹, Hiroe Kizawa¹², Hitomi Ueno², Ryota Shirai², Masafumi Seki¹², Kentaro Ohki², Junko Takita¹², Takeshi Inukai¹³, Seishi Ogawa¹⁴, Toshio Kitamura³, Kimikazu Matsumoto¹, Kenichiro Hata⁴, Susumu Goyama³, Nobutaka Kiyokawa² (1.Children's Cancer Center, National Center for Child Health and Development, 2.Dept. Pediatric Hemato/Onco Research, National Cent. Child Health and Development, 3.Div. Cellular Therapy, Inst. Medical Science, Univ. Tokyo, 4.Dept. Maternal-Fetal Biology, National Cent. Child Health and Development, 5.Department of Pediatrics, Niigata Cancer Center Hospital, 6.Department of Pediatrics, Toho University, 7.Department of Pediatrics, Sapporo Medical University School of Medicine, 8.Department of Pediatrics, Showa University Fujigaoka Hospital, 9.Dept. Pediatrics, Hiroshima Red Cross Hospital & Atomic-Bomb Survivors Hospital, 10.Department of Pediatrics, Japanese Red Cross Kumamoto Hospital, 11.Department of Human Genetics, National Cent. Child Health and Development, 12.Dept. Clinical Laboratory Medicine, National Cent. Child Health and Development, 13.Department of Pediatrics, The University of Tokyo, 14.Department of Pediatrics, Yamanashi University, 15.Department of Pathology and Tumor Biology, Kyoto University)

Akio Mori^1,3, Masahiro Onozawa^2,3, Hajime Senjo^1,3, Reiki Ogasawara^1,3, Minoru Kanaya³, Koh Izumiyama^1,3, Makoto Saitoh^1,3, Masanori Tanaka^1,3, Takeshi Kondo^1,3, Takanori Teshima^2,3, Masanobu Morioka^1,3 (1.Dept. of Hematology, Aiiku Hospital, Sapporo, Japan, 2.Dept. of Hematology, Faculty of Medicine, Hokkaido University, Hokkaido, Japan, 3.North Japan Hematology Study Group; NJHSG)

Tomoo Osumi^1,2, Akihiro Watanabe³, Kohji Okamura⁴, Kazuhiko Nakabayashi⁴, Masanori Yoshida^1,5, Shin-Ichi Tsujimoto^1,5, Ryota Shirai^1,5, Meri Uchiyama¹, Kentaro Ohki¹, Hiroyuki Takahashi⁶, Hiroe Kizawa⁷, Toru Uchiyama⁸, Daisuke Tomizawa², Kenichiro Hata⁴, Nobutaka Kiyokawa¹, Motohiro Kato^1,2 (1.Department of Pediatric Hematology and Oncology Research, NCCHD, Tokyo, Japan, 2.Children's Cancer Center, NCCHD, Tokyo, Japan, 3.Department of Pediatrics, Niigata Cancer Center Hospital, Niigata, Japan, 4.Department of Maternal-Fetal Biology, NCCHD, Tokyo, Japan, 5.Department of Pediatrics, Yokohama City University, Yokohama, Japan, 6.Department of Pediatrics, Toho University Omori Medical Center, Tokyo, Japan, 7.Department of Clinical Laboratory Medicine, NCCHD, Tokyo, Japan, 8.Department of Human Genetics, NCCHD, Tokyo, Japan)

Yu Yagi, Takamitsu Matsushima, Makoto Ohyama, Junichi Kiyasu, Yuji Yufu (Iizuka Hospital Hematology)

Yoshimasa Kamoda, Akira Hangaishi, Yusuke Uchibori, Hiroki Hayashida, Hiromitsu Iizuka, Michiko Kida, Kensuke Usuki (Department of Hematology, NTT Medical Center Tokyo, Tokyo, Japan)

Honoka Arai¹, Motoshi Ichikawa¹, Shiho Furuichi¹, Fusako Nagasawa¹, Wataru Takahashi¹, Tomoyuki Handa¹, Yuko Nakamura¹, Yuka Nakamura¹, Ko Sasaki¹, Yasuhito Nannya², Seishi Ogawa², Kinuko Mitani¹ (1.Department of Hematology and Oncology Dokkyo Medical University, 2.Department of Pathology and Tumor Biology, Kyoto University)