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乳腺癌是女性中最常见地判断其预后的恶性肿瘤，其临床结局变化很大，因此确立较好的预后指标对治疗极为重要。增殖细胞核抗原（Ｐｒｏｌｉｆｅｒａｔｉｎｇｃｅｌｌｎｕｃｌｅａｒａｎｔｉｇｅｎ，ＰＣＮＡ）和乳腺癌预后的关系已有不少报道，但结论尚不一致。本文采用免疫组
Breast cancer is the most commonly diagnosed malignant tumor in women, and its clinical outcomes vary greatly. Therefore, it is very important to establish better prognosis indicators for treatment. The relationship between proliferating cell nuclear antigen (PCNA) and the prognosis of breast cancer has been reported, but the conclusion is still inconsistent. This article uses immunization groups