Prognostic value of baseline carcinoembryonic antigen and cytokeratin 19 fragment levels in advanced non-small cell lung cancer
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Background: Serum carcinoembryonic antigen (CEA) and cytokeratin 19 fragment (CYFRA 21-1) levels are prognostic predictors in non-small cell lung cancer (NSCLC). However, even in patients with the same stage of cancer, the serum ... ...