Impact of gas delivery systems on imaging studies of human cerebral blood flow.

Radiol Res Pract · 2013 · PMC3874307 · PMID 24392225

Europe PMC DOI

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failed to reach significanceno p-value reported

A small reduction in CBF (−2.4%) was seen in response to increased FiO 2 but this failed to reach 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.