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Falk DE, Litten RZ, Anton RF, Kranzler HR, Johnson BA; Active Workgroup.Falk DE, et al.J Stud Alcohol Drugs. 2014 Mar;75(2):335-46. doi: 10.15288/jsad.2014.75.335.J Stud Alcohol Drugs. 2014.PMID: 24650828Free PMC article.Clinical Trial.