Fig. 2

Comparison of PFS curves according to the mutation status of a defined gene or gene combination upon receiving cetuximab-based therapy. a. Comparison of PFS curves of the SMAD4^mut group and the SMAD4^wt group. b. Comparison of PFS curves of the NF1^mut group and the NF1^wt group. c. Comparison of PFS curves of the SMAD4^mut or NF1^mut group comparing with the SMAD4^wt and NF1^wt group. The P value is calculated according to Gehan-Breslow-Wilcoxon test. Figures are made using GraphPad Prism 5