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Calsyn DA, Wells EA, Saxon AJ, Jackson TR, Wrede AF, Stanton V, Fleming C.Calsyn DA, et al. Among authors: jackson tr.J Addict Dis. 1994;13(3):47-63. doi: 10.1300/j069v13n03_05.J Addict Dis. 1994.PMID: 7734459Clinical Trial.