Research Article

Optimal Strategy for Colorectal Cancer Patients’ Diagnosis Based on Circulating Tumor Cells and Circulating Tumor Endothelial Cells by Subtraction Enrichment and Immunostaining-Fluorescence In Situ Hybridization Combining with CEA and CA19-9

Figure 5

The ROC curve of biomarkers to distinguish CRC patients from healthy controls. (a) ROC curve of CTC, CTEC, CEA, and CA19-9, respectively; (b) ROC curve combination of CTC, CTEC, CEA, and CA19-9 by logistic regression.
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(b)