[1] Tokyo Med & Dent Univ, Tokyo, Japan
[2] Japan Soc Hematopoiet Cell Transplantat, Hereditary Disorder Working Grp, Nagoya, Aichi, Japan
[3] Kyoto Univ Hosp, Kyoto, Japan
[4] Hokkaido Univ Hosp, Sapporo, Hokkaido, Japan
[5] Tohoku Univ Hosp, Sendai, Miyagi, Japan
[6] Univ Tsukuba Hosp, Tsukuba, Ibaraki, Japan
[7] Kyushu Univ Hosp, Fukuoka, Japan
[8] Tokai Univ Hosp, Isehara, Kanagawa, Japan
[9] Osaka Womens & Childrens Hosp, Izumi, Japan
[10] Nagoya Univ, Nagoya, Aichi, Japan
[11] Hiroshima Univ Hosp, Hiroshima, Japan
[12] Cent Japan Cord Blood Bank, Seto, Japan
[13] Osaka Univ, Suita, Osaka, Japan
[14] Japanese Data Ctr Hematopoiet Cell Transplantat, Nagoya, Aichi, Japan