目的：探讨血清细胞角蛋白19片段(CYFRA21 - 1)在不同民族食管癌患者中的差异。
Objective to investigate the serum levels of cytokeratin 19 fragment (CYFRA21-1) in Chinese people of different nationalities with esophageal cancer.
目的：探讨血清细胞角蛋白19片段(CYFRA21 - 1)在不同民族食管癌患者中的差异。
Objective to investigate the serum levels of cytokeratin 19 fragment (CYFRA21-1) in Chinese people of different nationalities with esophageal cancer.
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