Fig. 2From: Risk factors of metachronous brain metastasis in patients with EGFR-mutated advanced non-small cell lung cancerKaplan-Meier plot of OS, PFS, and BMFS in EGFR-mutated advanced NSCLC patients without BM at initial diagnosis. OS, overall survival; PFS, progression-free survival; BMFS, brain-metastasis-free survival; NSCLC, non-small cell lung cancer; BM, brain-metastases; CI, confidence intervalBack to article page