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Survival curves of secondary endpoints.
Kaplan–Meier curves of (A) overall survival (OS), (B) TTF, and (C) progression-free survival (PFS) with hazard ratio (HR) calculated by propensity score analysis using the inverse probability of treatment weighting (IPTW) method.
A/AFA, Afatinib; CI, confidence interval; EGFR-TKI, epidermal growth factor receptor-tyrosine kinase inhibitor; O/OSI, osimertinib.
