Research Article

The Role of Serum CEA and CA19-9 in Efficacy Evaluations and Progression-Free Survival Predictions for Patients Treated with Cetuximab Combined with FOLFOX4 or FOLFIRI as a First-Line Treatment for Advanced Colorectal Cancer

Figure 1

ROC curves for CEA (a) and CA19-9 (b) were compared with RECIST standards to determine the cut-off values for each for cetuximab resistance.
(a)
(b)