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Lac A, Unger JB, Basáñez T, Ritt-Olson A, Soto DW, Baezconde-Garbanati L.Lac A, et al. Among authors: basanez t.Subst Use Misuse. 2011;46(5):644-55. doi: 10.3109/10826084.2010.528121. Epub 2010 Oct 26.Subst Use Misuse. 2011.PMID: 20977294Free PMC article.