[1] Nagasaki Univ, Dept Hematol, Grad Sch Biomed Sci, Nagasaki, Japan
[2] Nagasaki Univ, Atom Bomb Dis Inst, Dept Hematol, Atom Bomb Dis & Hibakusha Med Unit, Nagasaki, Japan
[3] Kyoto Univ, Grad Sch Med, Dept Pathol & Tumor Biol, Kyoto, Japan
[4] Nagasaki Univ, Dept Resp Med, Grad Sch Biomed Sci, Nagasaki, Japan
[5] Sasebo City Gen Hosp, Dept Resp Med, Nagasaki, Japan
[6] Sasebo City Gen Hosp, Dept Hematol, Nagasaki, Japan
[7] Nagasaki Univ Hosp, Dept Hematol, Nagasaki, Japan
[8] Sasebo City Gen Hosp, Dept Clin Lab, Nagasaki, Japan
[9] Sasebo City Gen Hosp, Dept Pathol, Nagasaki, Japan
[10] Niigata Univ Med & Dent Hosp, Biosci Med Res Ctr, Niigata, Japan