[1] Natl Canc Ctr Hosp E, Breast Surg Div, Kashiwa, Chiba 2778577, Japan
[2] Natl Canc Ctr, Res Inst E, Div Pathol, Kashiwa, Chiba 2778577, Japan
[3] Natl Canc Ctr Hosp E, Head & Neck Surg Div, Kashiwa, Chiba 2778577, Japan
[4] Natl Canc Ctr, Diagnost Radiol Div, Chuo Ku, Tokyo 1040045, Japan