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乳腺癌是发病率和死亡率较高的常见妇科疾病，寻找新的生化标志用于提高诊断能力、制定治疗方案是乳腺癌研究中优先考虑的问题之一。前列腺特异性抗原（Prostate－specificantigen，PSA）是一种丝氨酸（ser）蛋白酶，主要由前列腺往状上皮细胞卢生和分泌。妇女体内某些组织知乳
Breast cancer is a common gynecological disease with high morbidity and mortality. Finding new biochemical markers for improving diagnostic capabilities and developing treatment plans is one of the priority issues in breast cancer research. Prostate-specific antigen (PSA) is a serine protease that is mainly produced by prostatic epithelial cells. Some tissues in women know milk