Masahiro Irie¹, Makoto Hitachi², Mika Watanabe³, Saori Katayama¹, Yuko Watanabe¹, Hidetaka Niizuma¹, Takeshi Rikiishi¹, Yoji Sasahara¹, Shigeo Kure¹ (1.Department of Pediatrics, Tohoku University Graduate School of Medicine, 2.Department of Diagnostic Radiology, Tohoku University Graduate School of Medicine, 3.Department of Pathology, Tohoku University Graduate School of Medicine)

Toshihide Yoshikawa¹, Akihiko Tanizawa^1,2, Koji Suzuki¹, Maiko Shimada¹, Yuiko Nakabayashi¹, Aina Yamaguchi³, Yoshiaki Imamura³, Kunihiro Inai⁴, Tatsuto Shimizu⁵, Asami Kumano⁵, Yusei Ohshima¹ (1.Department of Pediatrics, Faculty of Medical Sciences, University of Fukui, Fukui, Japan, 2.Department of Human Resource Development for Cancer, Faculty of Medical Sciences, University of Fukui, Fukui, Japan, 3.Division of Surgical Pathology, University of Fukui Hospital, Fukui, Japan, 4.Division of Molecular Pathology, Department of Pathological Sciences, Faculty of Medical Sciences, University of Fukui, Fukui, Japan, 5.Department of Pediatrics, Fukui Prefectural Hospital, Fukui, Japan)

Hiroshi Yagasaki¹, Maiko Hirai¹, Hirotsugu Okuma¹, Masataka Ito¹, Erina Nakahara¹, Motoaki Chin¹, Masahiko Sugitani², Hiroyuki Hao², Tsubasa Okano³, Kohsuke Imai³, Tomohiro Morio³, Hide Kaneda⁴, Hiroyuki Kawashima⁴, Kensuke Oohashi⁴, Shuichirou Uehara⁴, Tsugumichi Koshinaga⁴, Ichiro Morioka⁴ (1.Department of Pediatrics, Nihon Univ, Tokyo, 2.Department of Pathlogy, Nihon Univ, Tokyo, 3.Pediatrics, Tokyo Dental and Medical Univ, Tokyo, 4.Pediatric Surgery)

Yoji Sasahara, Tomohiro Nakano, Saori Katayama, Yuko Watanabe, Masahiro Irie, Hidetaka Niizuma, Takeshi Rikiishi (Department of Pediatrics, Tohoku University Graduate School of Medicine, Miyagi, Japan)

Risa Takeda¹, Yasuhiko Ito², Satoru Yoshida¹, Michi Kamei¹, Shinji Saitoh¹, Takashi Koike³, Hiromasa Yabe⁴, Hisashi Kato⁵, Hirokazu Kashiwagi⁵ (1.Department of Neonatology and Pediatrics, Nagoya City University Graduate School of Medical Sciences, Aichi, Japan, 2.Department of Pediatrics, Nagoya City West Medical Center, Aichi, Japan, 3.Department of Pediatrics, Tokai University school of medicine, Kanagawa, Japan, 4.Department of Cell Transplantation and Regenerative Medicine, Tokai University school of medicine, Kanagawa, Japan, 5.Department of hematology and oncology, Osaka Univercity Graduate School of Medicine, Osaka, Japan)

Takashi Koike¹, Eri Imai¹, Keisuke Otsubo¹, Akiko Fukumura¹, Hiroyuki Mochizuki¹, Hiromasa Yabe², Risa Takeda³, Michi Kamei³, Yasuhiko Ito⁴, Hisashi Kato⁵, Hirokazu Kashiwagi⁵ (1.Department of Pediatrics, Tokai University school of medicine, Kanagawa, Japan, 2.Department of Cell Transplantation and Regenerative Medicine, Tokai University school of medicine, Kanagawa, Japan, 3.Department of Pediatrics and Neonatology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan, 4.Department of Pediatrics, Nagoya City West Medical Center, Nagoya, Japan, 5.Department of Hematology and Oncology, Osaka University Graduate School of Medicine, Osaka, Japan)

Hiroyoshi Hattori^1,2, Michiko Nemoto², Naoko Maeda¹, Nobuhiro Akita¹, Suzuko Moritani⁴, Hideki Muramatsu³, Tomonori Kawasaki⁴, Masami Maejima², Hirotaka Ode², Atsuko Hachiya², Wataru Sugiura², Yoshiyuki Yokomaku², Yasumasa Iwatani², Keizo Horibe^1,2 (1.Department of Pediatrics, Nagoya Medical Center, Nagoya, Japan, 2.Clinical Research Center, National Hospital Organization Nagoya Medical Center, Nagoya, Japan, 3.Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan, 4.Department of Pathology, National Hospital Organization Nagoya Medical Center, Nagoya, Japan)