Similar Squamous Cell Carcinoma Epithelium microRNA Expression in Never Smokers and Ever Smokers.

PLoS One · 2015 · PMC4636300 · PMID 26544609

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did not reach statistical significanceno p-value reported

Curiously group two of the two subclasses showed a nominally higher percentage of smokers that did not reach statistical significance, but there was a 40% increase in cigarette pack year exposure 62±2.6 versus 100±4.4, t < 0.0389.

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