1Department of Hematology, National Cancer Center Hospital, 5-1-1 Tsukiji, Chuo-ku, Tokyo, 104-0045 Japan
2Department of Hematology, National Cancer Center Hospital East, Kashiwa, Japan
3Department of Hematology and Oncology, Japanese Red Cross Nagoya Daini Hospital, Nagoya, Japan
4Okayama University Hospital, Okayama, Japan
5Osaka University Hospital, Osaka, Japan
6Clinical Research Center, National Hospital Organization Nagoya Medical Center, Nagoya, Japan
7Hokkaido Cancer Center, Sapporo, Japan
8Kyushu Cancer Center, Fukuoka, Japan
9The Cancer Institute Hospital, Tokyo, Japan
10Tokai University Hospital, Isehara, Japan
11Shikoku Cancer Center, Matsuyama, Japan
12Kumamoto Medical Center, Kumamoto, Japan
13Hyogo Cancer Center, Akashi, Japan
14Tohoku University Hospital, Sendai, Japan
15Gunma University Hospital, Maebashi, Japan
16University Hospital, Kyoto Prefectural University of Medicine, Kyoto, Japan
17Shimane University Hospital, Izumo, Japan
18Fukuoka University Hospital, Fukuoka, Japan
19Fukui University Hospital, Fukui, Japan
20Aichi Medical University, Nagakute, Japan