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Bird ER, Gilmore AK, George WH, Lewis MA.Bird ER, et al. Among authors: gilmore ak.Addict Behav. 2016 Jan;52:28-33. doi: 10.1016/j.addbeh.2015.08.001. Epub 2015 Aug 12.Addict Behav. 2016.PMID: 26348279Free PMC article.