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. 2021 Aug 2;54(2):434–444. doi: 10.4143/crt.2021.671

Fig. 3.

Fig. 3

Progression-free survival of patients with erlotinib and afatinib as first-line treatment combined with bevacizumab. (A) Progression-free survival of different epidermal growth factor receptor–tyrosine kinase inhibitors (EGFR-TKIs) in all patients. (B) Progression-free survival of different EGFR-TKIs in patients with brain metastasis at baseline. (C) Progression-free survival of different EGFR-TKIs in patients harboring exon 19 deletion. (D) Progression-free survival of different EGFR-TKIs in patients harboring exon 21 L858R point mutation. CI, confidence interval.