Figure 1

The PFS between patients grouped by (A) with or without BM (B) with or without BM and first- or second-generation EGFR-TKI treatment. BM brain metastasis, 1G first-generation EGFR-TKI, 2G second-generation EGFR-TKI.

The PFS between patients grouped by (A) with or without BM (B) with or without BM and first- or second-generation EGFR-TKI treatment. BM brain metastasis, 1G first-generation EGFR-TKI, 2G second-generation EGFR-TKI.