Bladder cancer and occupational exposure to diesel and gasoline engine emissions among Canadian men.

Cancer Med · 2015 · PMC5123782 · PMID 26511593

Europe PMC DOI

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highly significantno p-value reported

Pack‐years of cigarette smoking exhibited a highly significant, positive dose‐response relationship with bladder cancer in a model adjusted for proxy respondent, province of residence, and age at interview.

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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.