Erratum: CNS response to osimertinib vs standard of care (SoC) EGFR-TKI as first-line therapy in patients (pts) with EGFR-TKI sensitising mutation (EGFRm)-positive advanced non-small cell lung cancer (NSCLC): Data from the FLAURA study (Annals of Oncology (2017) 28(S10) (x183), (S0923753419565462), (10.1093/annonc/mdx729))