beta2-agonists promote host defense against bacterial infection in primary human bronchial epithelial cells.

BMC Pulm Med · 2010 · PMC2881900 · PMID 20470412

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a slight trendno p-value reported

However, the COPD cells showed only a slight trend of decrease in Mp levels.

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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.