Ken Ota^1,3, Tomoaki Akagi^1,2, Takahiko Fujii¹, Satoru Yamashita³, Toru Ebina³, Kosuke Kamata³, Kohei Yamaguchi³, Ko Mayama³, Kazufumi Yamagata³, Yoshiko Tamai⁴, Hideki Takami⁵, Shinsaku Fukuda³, Kohmei Kubo¹ (1.Department of Hematology, Aomori Prefectural Central Hospital, Aomori, Japan, 2.Department of Transfusion Medicine, Aomori Prefectural Central Hospital, Aomori, Japan, 3.Department of Gastroenterology and Hematology, Hirosaki University, Hirosaki, Japan, 4.Division of Blood Transfusion, Hirosaki University, Hirosaki, Japan, 5.Hirosaki university school of Health Sciences, Hirosaki, Japan)

Daisuke Okatomi^1,3, Yuta Katayama^2,3, Tatsuji Mino², Takeshi Okatani², Ryota Imanaka², Kohei Kyo², Mitsuhiro Itagaki², Shinya Katsutani², Masatoshi Taniguchi^1,3, Koji Iwato², Hideki Asaoku² (1.Pharmacy, Hiroshima Red Cross and Atomic Survivors Hospital, Hiroshima, Japan, 2.Hematology, Hiroshima Red Cross and Atomic Survivors Hospital, Hiroshima, Japan, 3.Nosocomial infection control committee, HRC, Hiroshima, Japan)

Shuku Sato, Satomi Okada, Wataru Kamata, Emiko Kanbe, Yotaro Tamai (Devision of Hematology, Shonan Kamakura General Hospital., Kamakura, Japan)

Motohito Okabe, Yuka Kawaguchi, Marie Ohbiki, Yoonha Lee, Masahide Osaki, Miyo Goto, Hiroaki Araie, Takahiko Sato, Tatsunori Goto, Takanobu Morishita, Yukiyasu Ozawa, Koichi Miyamura (Japanese Red Cross Nagoya First Hospital, Aichi, Japan)

Yasuyuki Aoyama^1,2, Yoshiaki Obayashi¹, Takanobu Tsuchida³, Hiroshi Kawada², Yoshiaki Ogawa², Kiyoshi Ando² (1.Department of Hematology, Hiratuka Kyosai Hospital, Kanagawa, Japan, 2.Department of Hematology, Tokai univ., Kanagawa, Japan, 3.Division of Specimen Inspection, Redross Hospital, Kanagawa, Japan)

Tomonori Inoue¹, Yukihiro Miyazaki², Masaya Abe², Ryo Ueda², Aki Sakurai², Kyoko Itakusu², Koichi Nakase², Yuichiro Nawa² (1.Infection and Medical oncology, Shikoku Cancer Center, Ehime, Japan, 2.Hematology, Ehime Prefectural Central Hospital, Ehime, Japan)