Feasibility of quality of life assessment in patients with upper gastrointestinal tract cancer.

Br J Cancer · 2003 · PMC2394377 · PMID 12888819

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did not reach statistical significanceno p-value reported

Patients with poor performance scores may need help to complete questionnaires, although in this study sample this did not reach statistical significance.

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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.