Fig. 4

Patients harboring rare EGFR 19delins mutation obtained similar survival benefits from first-generation EGFR TKIs to those with EGFR 19del mutation. Kaplan-Meier curves were drawn for comparing the PFS between patients with EGFR 19delins and EGFR 19del (A), PFS among patients with different variants in EGFR 19delins cohort (B and C), and PFS between patients receiving different EGFR TKIs in EGFR 19delins cohort (D)