Figure 2. The proportion and subtypes of EGFR mutation.
A. Sex proportion and subtypes of EGFR mutation. Deletion in exon 19 and L858R appears more often in women. However, G719X and S768I do not have this tendency. B. Proportion of smokers and subtypes of EGFR mutation. The trend is similar to the sex proportion. E19: deletion in exon 19, E20: insertion in exon 20.