Fig. 4

Subgroup analysis of intracranial progression-free survival
Fig. 4A: iPFS for patients treated with first or second-generation EGFR-TKIs; Fig. 4B: iPFS for patients treated with third-generation EGFR-TKIs; Fig. 4C: iPFS for patients with L858R EGFR mutation; Fig. 4D: iPFS for patients with 19del EGFR mutation