[1] Gunma Univ Hosp, Dept Hematol, Maebashi, Gunma, Japan
[2] Saiseikai Maebashi Hosp, Leukemia Res Ctr, Gunma, Japan
[3] Saiseikai Maebashi Hosp, Leukemia Res Ctr, Maebashi, Gunma, Japan
[4] Gunma Univ, Blood Transfus Serv, Sch Med, Maebashi, Gunma, Japan
[5] Gunma Univ, Grad Sch Hlth Sci, Maebashi, Gunma, Japan
[6] Gunma Univ, Grad Sch Med, Dept Hematol, Maebashi, Gunma, Japan