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. 2006 Mar 21;94(6):896–903. doi: 10.1038/sj.bjc.6603040

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Copyright © 2006 Cancer Research UK

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Kaplan–Meier survival curve for adenocarcinoma patients who did not receive gefitinib treatment. (A) The overall survival in relation to EGFR mutations in patients with adenocarcinoma. The five-year survival rate in the group with EGFR mutations and in the group without mutations was 73.6% and 64.1%, respectively, which did not show statistically significant difference (P=0.0652). (B) There was no statistically significant difference in the overall survival curves between patients with exon 19 deletion and exon 21 L858R (P=0.5625).