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Bennett SA, Beck JG, Clapp JD.Bennett SA, et al. Among authors: clapp jd.Behav Res Ther. 2009 Dec;47(12):1018-23. doi: 10.1016/j.brat.2009.07.015. Epub 2009 Jul 30.Behav Res Ther. 2009.PMID: 19679301