Role of nicotine dependence on the relationship between variants in the nicotinic receptor genes and risk of lung adenocarcinoma.

PLoS One · 2014 · PMC4169410 · PMID 25233467

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an increasing trendno p-value reported

Worldwide, ADC is the most common type of lung cancer, with an increasing trend of incidence over time for both males and females [2] .

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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.