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Cerdá M, Ransome Y, Keyes KM, Koenen KC, Tracy M, Tardiff KJ, Vlahov D, Galea S.Cerdá M, et al. Among authors: tracy m.Drug Alcohol Depend. 2013 Sep 1;132(1-2):53-62. doi: 10.1016/j.drugalcdep.2012.12.027. Epub 2013 Jan 26.Drug Alcohol Depend. 2013.PMID: 23357743Free PMC article.