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ROC curve analysis of MSCT combined with CA19-9, Bcl-2 and CYFRA21-1 detection in the diagnosis of esophageal cancer. ROC, receiver operating characteristic; MSCT, multi-slice spiral computed tomography; CA19-9, carbohydrate antigen 19-9; Bcl-2, B-cell leukemia/lymphoma-2 protein; CYFRA21-1, cytokeratin 19 fragment antigen 21-1.
