A biophysical basis for mucus solids concentration as a candidate biomarker for airways disease.

PLoS One · 2014 · PMC3928107 · PMID 24558372

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an obvious trendno p-value reported

These data reveal an obvious trend toward smaller step sizes as mucus solids concentration increases.

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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.