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Zhou Y, Michelhaugh SK, Schmidt CJ, Liu JS, Bannon MJ, Lin Z.Zhou Y, et al. Among authors: schmidt cj.Addict Biol. 2014 Jan;19(1):122-31. doi: 10.1111/j.1369-1600.2011.00391.x. Epub 2011 Oct 26.Addict Biol. 2014.PMID: 22026501Free PMC article.
Johnson MM, Michelhaugh SK, Bouhamdan M, Schmidt CJ, Bannon MJ.Johnson MM, et al. Among authors: schmidt cj.Front Neurosci. 2011 Dec 20;5:135. doi: 10.3389/fnins.2011.00135. eCollection 2011.Front Neurosci. 2011.PMID: 22194714Free PMC article.