Defining a standard set of patient-centred outcomes for lung cancer.

Eur Respir J · 2016 · PMC5007221 · PMID 27390281

Europe PMC DOI

hedged sentence

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may be significantno p-value reported

We recognise that the burden of answering 43 items from EORTC QLQ-C30 and EORTC QLQ-LC13 at each interval may be significant for some patients.

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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.