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Duhig AM, Cavallo DA, McKee SA, George TP, Krishnan-Sarin S.Duhig AM, et al. Among authors: cavallo da.Addict Behav. 2005 Feb;30(2):271-83. doi: 10.1016/j.addbeh.2004.05.016.Addict Behav. 2005.PMID: 15621398
McKee SA, Carroll KM, Sinha R, Robinson JE, Nich C, Cavallo D, O'Malley S.McKee SA, et al.Drug Alcohol Depend. 2007 Nov 2;91(1):97-101. doi: 10.1016/j.drugalcdep.2007.05.006. Epub 2007 Jun 15.Drug Alcohol Depend. 2007.PMID: 17573205Free PMC article.Clinical Trial.