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Hughes AA, Heimberg RG, Coles ME, Gibb BE, Liebowitz MR, Schneier FR.Hughes AA, et al.Behav Res Ther. 2006 Nov;44(11):1629-41. doi: 10.1016/j.brat.2005.10.015. Epub 2006 Feb 2.Behav Res Ther. 2006.PMID: 16457777