[1] Hiroshima Univ, Res Inst Radiat Biol & Med, Dept Hematol & Oncol, Div Clin & Expt Oncol,Minamu Ku, Hiroshima 730, Japan
[2] Hiroshima Univ, Res Inst Radiat Biol & Med, Dept Stem Cell Biol, Div Radiat & Regenerat Control,Minami Ku, Hiroshima 730, Japan
[3] Hiroshima Univ, Res Inst Radiat Biol & Med, Dept Envirometr & Biometr, Div Biomed Informat,Minami Ku, Hiroshima 730, Japan