Efficacy and safety of radiotherapy in patients with microsatellite stable or proficient mismatch repair colorectal cancer liver metastasis

Figure 1 Comparison of serum tumor marker levels (ng/mL). A: Carcinoembryonic antigen; B: Carbohydrate antigen 199. CEA: Carcinoembryonic antigen; CA199: Carbohydrate antigen 199. ^aP < 0.05, compared to pre-treatment; ^bP < 0.05, between groups.

Figure 2 Kaplan-Meier survival analysis. A: Kaplan-Meier curve of median progression-free survival for both groups; B: Kaplan-Meier curve of median overall survival for both groups.