Akihiro Iguchi, Yukayo Terashita, Minako Sugiyama, Jun Okubo, Yuko Cho (Department of Pediatrics, Hokkaido University Hospital, Sapporo, Japan)

Pariwan Sripattanatadasakul, Jassada Buaboonnam, Ajjima Treesucon, Waraporn Glomglao (Division of Hematology and Oncology, Department of Pediatrics, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Kingdom of Thailand)

Kamon Phuakpet, Jassada Buaboonnam, Kleebsabai Sanpakit, Nassawee Vathana, Nattee Narkbunnam, Chaiwat Luangvicheanphon, Bunchoo Pongtanakul (Division of Hematology and Oncology, Department of Pediatrics, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Kingdom of Thailand)

Siriporn Thitipolpun, Nassawee Vathana, Jassada Buaboonnam, Kamon Phuakpet, Kleebsabai Sanpakit (Division of Hematology and Oncology, Department of Pediatrics, Faculty of Medicine Siriraj Hospital, Mahidol university, Bangkok, Kingdom of Thailand)

Erina Nakahara, Hiroshi Yagasaki, Masataka Ito, Syuntaro Tanigawa, Koji Kanezawa, Hirotsugu Okuma, Maiko Hirai, Motoaki Chin, Ichiro Morioka (Pediatrics., Nihon Univ., Tokyo, Japan)

Yukihiro Takahashi^1,2, Tizuko Kuramoto³, Takashi Okamoto³, Naoko Yamaguchi³, Masaharu Yamazaki³, Yumiko Uchida², Tamaki Hayashi², Tomoyuki Kamamoto², Takashi Nakagawa², Hitoshi Tonegawa², Eri Nishimoto², Yuki Tani², Toshiya Nishikubo² (1.Japanese Red Cross Nara Blood Center., Nara, Japan, 2.Division of Neonatal Intensive Care, Nara Medical University , Nara, Japan, 3.Dipartment of Clinical Laboratory Medicine, Nara Medical University , Nara, Japan)

Daisuke Ichikawa¹, Asahito Hama¹, Yusuke Okuno¹, Hideki Muramatsu¹, Nozomu Kawashima¹, Eri Nishikawa¹, Atsushi Narita¹, Nobuhiro Nishio¹, Yoshiaki Sato², Takashi Tachibana³, Kaname Matsusawa⁴, Masahiro Hayakawa², Tetushi Yoshikawa⁵, Akihisa Okumura⁶, Shinji Saitoh⁷, Jun Natsume¹, Seiji Kojima¹, Yoshiyuki Takahashi¹ (1.Department of Pediatrics, Nagoya University, Nagoya, Japan, 2.Center for Maternal-Neonatal Care, Nagoya University Hospital, Nagoya, Japan, 3.Department of Pediatric Cardiology Neonatology, Ogaki Municipal Hospital, Ogaki, Japan, 4.Department of Pediatrics, Okazaki City Hospital, Okazaki, Japan, 5.Department of Pediatrics, Fujita Health University, Toyoake, Japan, 6.Department of Pediatrics, Aichi Medical University, Nagakute, Japan, 7.Department of Pediatrics and Neonatology, Nagoya City University, Nagoya, Japan)

Ryu Yanagisawa^1,2,3, Yozo Nakazawa², Kazuyuki Matsuda³, Takahiro Yasumi⁵, Hirokazu Kanegane⁶, Shouichi Ohga⁷, Akira Morimoto⁸, Akiko Saito³, Keizo Horibe³, Eiichi Ishii⁹ (1.Division of Blood Transfusion, Shinshu University Hospital, Matsumoto, Japan, 2.Department of Pediatrics, Shinshu University School of Medicine, Matsumoto, Japan, 3.Clinical Research Center, Nagoya Medical Center, Nagoya, Japan, 4.Department of Laboratory Medicine, Shinshu University Hospital, Matsumoto, Japan, 5.Department of Pediatrics, Kyoto University, Kyoto, Japan, 6.Department of Pediatrics, Tokyo Medical and Dental University, Tokyo, Japan, 7.Department of Pediatrics, Kyushu University, Fukuoka, Japan, 8.Department of Pediatrics, Jichi Medical University of Medicine, Tochigi, Japan, 9.Department of Pediatrics, Ehime University, Toon, Japan)