[1] Natl Ctr Child Hlth & Dev, Div Leukemia & Lymphoma, Childrens Canc Ctr, Tokyo, Japan
[2] Natl Ctr Child Hlth & Dev, Dept Pediat Hematol & Oncol Res, Tokyo, Japan
[3] Kyoto Univ, Dept Hematol & Oncol, Kyoto, Japan
[4] Osaka Univ, Dept Pediat, Grad Sch Med, Osaka, Japan
[5] Shiga Univ Med Sci, Dept Pediat, Otsu, Shiga, Japan
[6] Kyoto Univ, Dept Human Hlth Sci, Kyoto, Japan
[7] Saitama Childrens Med Ctr, Dept Hematol Oncol, Saitama, Japan
[8] Kyushu Natl Canc Ctr, Dept Pediat, Fukuoka, Fukuoka, Japan
[9] Chiba Childrens Hosp, Dept Hematol & Oncol, Chiba, Japan
[10] Yokohama City Univ Med, Dept Pediat, Tokyo, Japan
[11] Shizuoka Childrens Hosp, Dept Hematol & Oncol, Shizuoka, Japan
[12] Osaka Womens & Childrens Hosp, Dept Hematol Oncol, Osaka, Japan
[13] Japanese Data Ctr Hematopoiet Cell Transplantat, Data Ctr, Nagoya, Aichi, Japan
[14] Kyoto City Hosp, Dept Pediat, Kyoto, Japan