[1] Natl Canc Ctr, Tokyo, Japan
[2] Tohoku Univ, Grad Sch Med, Sendai, Miyagi, Japan
[3] Jyoban Hosp, Tokiwa Fdn, Fukushima, Japan
[4] Japanese Data Ctr Hematopoiet Cell Transplantat, Nagoya, Aichi, Japan
[5] Kanagawa Canc Ctr, Yokohama, Kanagawa, Japan
[6] Keio Univ, Sch Med, Tokyo, Japan
[7] Univ Tokyo, Inst Med Sci, Tokyo, Japan
[8] Kyoto Univ, Kyoto, Japan
[9] JA Aichi Konan Kosei Hosp, Konan, Japan
[10] Japanese Red Cross Nagoya First Hosp, Nagoya, Aichi, Japan
[11] Osaka City Univ, Osaka, Japan
[12] Hokkaido Univ, Grad Sch Med, Sapporo, Hokkaido, Japan
[13] Toranomon Gen Hosp, Tokyo, Japan
[14] St Lukes Int Hosp, Tokyo, Japan
[15] Jichi Med Univ, Shimotsuke, Tochigi, Japan