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Tan X, Dierker L, Rose J, Li R; Tobacco Etiology Research Network.Tan X, et al.Subst Use Misuse. 2011;46(6):758-68. doi: 10.3109/10826084.2010.537731. Epub 2010 Dec 21.Subst Use Misuse. 2011.PMID: 21174495Free PMC article.