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Diefenbach GJ, Abramowitz JS, Norberg MM, Tolin DF.Diefenbach GJ, et al.Behav Res Ther. 2007 Dec;45(12):3060-8. doi: 10.1016/j.brat.2007.04.014. Epub 2007 May 10.Behav Res Ther. 2007.PMID: 17559803