Lung mesenchymal expression of Sox9 plays a critical role in tracheal development.

BMC Biol · 2013 · PMC4222279 · PMID 24274029

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a small trendno p-value reported

did not reach statistical significanceno p-value reported

Quantification of the mRNA of Fgf10 did show a small trend towards a decrease in mRNA level, but this did not reach statistical significance.

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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.