Masashi Hirayama, Arata Watanabe (Nakadori General Hospital, Akita, Japan)

Yuko Hayashi^1,2, Mikiya Endo², Keisuke Oikawa², Maya Asami², Kotaro Oyama² (1.Iwate Prefectural Ninohe Hospital, Iwate, Japan, 2.Department of Pediatrics, Iwate Medical University)

Shuichi Okamoto¹, Nobuaki Suzuki², Sachiko Suzuki⁴, Shogo Tamura⁴, Mochihito Suzuki⁵, Nobunori Takahashi⁵, Toshihisa Kojima⁵, Naoki Ishiguro⁵, Takeshi Kanematsu³, Tetsuhito Kojima⁴, Hitoshi Kiyoi¹, Tadashi Matsushita^2,3 (1.Hematol and Oncol., Nagoya Univ Grad Sch., Nagoya, Japan, 2.Transfusion Med., Nagoya Univ. Hosp., Nagoya, Japan, 3.Lab. Med., Nagoya Univ. Hosp., Nagoya, Japan, 4.Pathophysiol. Lab. Sci., Nagoya Univ. Grad. Sch., Nagoya, Japan, 5.Orthop. Surg., Nagoya Univ. Sch., Nagoya, japan)

Masamune Higashigawa, Ichiro Kato, Mitsuaki Miyata, Tomohiro Hasegawa, Masaya Nakamura, Sato Nishiyama, Yasuaki Yasuda, Naoki Kamata, Mitsue Ito, Ryoji Ichimi (Department of Pediatrics/Neonatology, Japanese Red Cross Ise Hospital, Ise, Japan)

Mikiya Endo¹, Yuko Hayashi², Hidekazu Maruyama³, Yoshiko Asakura¹, Daishi Hirai¹, Kotaro Oyama¹ (1.Department of Pediatrics Iwate Medical University Morioka Japan, 2.Iwate Prefectual Ninohe Hospital Ninohe Japan, 3.Iwate Perfectual Iwai Hospital Ichinoseki Japan)

Midori Shima¹, Takashi Suzuki², Masashi Taki³, Tadashi Matsushita⁴, Michio Sakai⁵, Katsuyuki Fukutake⁶, Norihiro Okada⁷, Shingo Maisawa⁷, Ryu Kasai⁷, Keiji Nogami¹ (1.Department of Pediatrics, Nara Medical University, Kashihara, Japan, 2.Department of Blood Coagulation, Ogikubo Hospital, Tokyo, Japan, 3.Department of Pediatrics, St Marianna University School of Medicine, Kawasaki, Japan, 4.Department of Transfusion Medicine, Nagoya University, Nagoya, Japan, 5.Department of Pediatrics, Munakata Suikokai General Hospital, Fukutsu, Japan, 6.Department of Laboratory Medicine, Tokyo Medical University, Tokyo, Japan, 7.Chugai Pharmaceutical Co., Ltd, Tokyo, Japan)

Yoichi Hamazaki¹, Kazuko Akutsu¹, Toshiaki Sai¹, Daiki Ozawa², Takayuki Ikezoe³ (1.Department of Hematology, Iwaki City Medical Center, Iwaki, Japan, 2.Department of Otolaryngology, Iwaki City Medical Center, Iwaki, Japan, 3.Department of Hematology, Fukushima Medical University, Fukushima, Japan)