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Gafford GM, Guo JD, Flandreau EI, Hazra R, Rainnie DG, Ressler KJ.Gafford GM, et al. Among authors: guo jd.Proc Natl Acad Sci U S A. 2012 Oct 2;109(40):16330-5. doi: 10.1073/pnas.1119261109. Epub 2012 Sep 19.Proc Natl Acad Sci U S A. 2012.PMID: 22992651Free PMC article.