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目的:探讨外周血金属硫蛋白(metallothionein, MT)、血管内皮细胞生长因子(vascular endothelial growth factor, VEGF)、糖链抗原125(carbohydrate antigen 125, CA125)、癌胚抗原(carcinoem-bryonic antigen, CEA)和基质金属蛋白酶-9(matrix metalloprotein-9, MMP-9)5项指标联合检测对晚期非小细胞肺癌(non-small-cell lung carcinoma,