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Carroll KM, Easton CJ, Nich C, Hunkele KA, Neavins TM, Sinha R, Ford HL, Vitolo SA, Doebrick CA, Rounsaville BJ.Carroll KM, et al. Among authors: easton cj.J Consult Clin Psychol. 2006 Oct;74(5):955-66. doi: 10.1037/0022-006X.74.5.955.J Consult Clin Psychol. 2006.PMID: 17032099Free PMC article.Clinical Trial.