摘要

<正>1文献来源研究一:Nakagawa K,Garon EB,Seto T,et al.Ramucirumab plus Erlotinib in patients with untreated,EGFR-mutated,advanced non-small-cell lung cancer(RELAY):A randomised,double-blind,placebo-controlled,phase 3 trial[J]. Lancet Oncol,2019,20(12):1655-1669.