Diffusion through Pig Gastric Mucin: Effect of Relative Humidity.

PLoS One · 2016 · PMC4918968 · PMID 27336158

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a clear trendno p-value reported

Qualitatively a clear trend was observed with a dramatic reduction in diffusion coefficients with decreased water content in the mucin gels.

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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.