A systematic review of occupational exposure to particulate matter and cardiovascular disease.

Int J Environ Res Public Health · 2010 · PMC2872342 · PMID 20617059

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marginally statistically significantno p-value reported

Higher levels of vWF were also observed in healthy volunteers after exposure to welding fumes as compared to a control day, though this difference was only marginally statistically significant [ 59 ].

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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.