[1] Japanese Fdn Canc Res, Inst Canc, Dept Pathol, Tokyo, Japan
[2] Japanese Fdn Canc Res, Inst Canc, Div Canc Genom, Tokyo, Japan
[3] Teikyo Univ, Grad Sch, Tokyo, Japan
[4] Ventana Med Syst Inc, Tucson, AZ USA
[5] Japanese Fdn Canc Res, Canc Inst Hosp, Breast Oncol Ctr, Tokyo, Japan