Evaluation of salivary immunoglobulin A levels in tobacco smokers and patients with recurrent aphthous ulcers.

J Nat Sci Biol Med · 2012 · PMC3510913 · PMID 23225981

Europe PMC DOI

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a decreasing trendno p-value reported

The mean salivary immunoglobulin A levels showed a decreasing trend from controls to smokers.

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highly significantno p-value reported

These results were highly significant for values between control groups to smokers.

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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.