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Harrigan K, Brown D, MacLaren V.Harrigan K, et al.Int J Ment Health Addict. 2015;13(6):740-750. doi: 10.1007/s11469-015-9557-y. Epub 2015 May 1.Int J Ment Health Addict. 2015.PMID: 26568707Free PMC article.