Immune-checkpoint inhibitor plus chemotherapy versus conventional chemotherapy for first-line treatment in advanced non-small cell lung carcinoma: a systematic review and meta-analysis.
J Immunother Cancer · 2018 · PMC6303974 · PMID 30577837
The difference of OS benefit across PD-L1 subgroups obtained a near-significant trend ( P = .057).
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Quoted from the open-access full text in Europe PMC under the licence the publisher applied. The sentence is reproduced exactly as published; the emphasis is ours.