Cholesterol level affects surface charge of lipid membranes in saline solution.

Sci Rep · 2014 · PMC4028897 · PMID 24845659

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a definite trendno p-value reported

This showed that there is a definite trend, which can be attributed to the change in the cholesterol content.

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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.