Figure 4.Kaplan-Meier estimates of the overall survival of patients carrying wild-type KRAS or EGFR genes. (A) Kaplan-Meier survival curves were plotted to estimate the overall survival for patients carrying wild-type KRAS gene in two validation groups. (B) Kaplan-Meier survival curves were plotted to estimate the overall survival for patients carrying wild-type EGFR gene in two validation groups.
