Commentary
Smoking and Psoriasis: From Epidemiology to Pathomechanisms

https://doi.org/10.1038/jid.2009.315Get rights and content
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Smoking is a well-established environmental risk factor for psoriasis. It should be carefully considered in genetic studies because smoking can modify risk estimates for genetic markers. Genome-wide association studies may facilitate the analysis of genetic–environmental interaction in psoriasis.

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The authors state no conflict of interest.