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Berry K, Gregg L, Vasconcelos e Sa D, Haddock G, Barrowclough C.Berry K, et al. Among authors: gregg l.Behav Res Ther. 2012 Mar;50(3):210-4. doi: 10.1016/j.brat.2012.01.004. Epub 2012 Jan 25.Behav Res Ther. 2012.PMID: 22325807Clinical Trial.