Traffic-related air pollution and brain development.

AIMS Environ Sci · 2015 · PMC4835031 · PMID 27099868

Europe PMC DOI

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a clear trendno p-value reported

Even so, there is a clear trend for numerous adverse cognitive effects from pollution exposure during development, and future studies hold many promises.

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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.