Objective To approch the correlation relationship between the expression of PCNA and ER,PR in breast cancer and evaluate the significance of combine detection in formulating endocrine therapeutic regimen after breast cancer operation.

• 目的探讨增殖细胞核抗原(PCNA)的表达与雌激素受体(ER)、孕激素受体(PR)之间的相互关系及联合检测对乳腺癌术后内分泌治疗方案制定和预测、预后的意义。