[1] Natl Hosp Org Kure Med Ctr, Chugoku Canc Ctr, Inst Clin Res, Kure, Hiroshima, Japan
[2] Natl Hosp Org Kure Med Ctr, Chugoku Canc Ctr, Dept Surg, Kure, Hiroshima, Japan
[3] Natl Univ Singapore, Fac Med, Oncol Res Inst, Inst Mol & Cell Biol,Proteos, Singapore, Singapore
[4] Natl Canc Ctr, Res Inst, Carcinogenesis Div, Tokyo, Japan
[5] Radiat Effects Res Fdn, Hiroshima, Japan