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Agboola SA, Coleman TJ, Leonardi-Bee JA, McEwen A, McNeill AD.Agboola SA, et al.BMC Health Serv Res. 2010 Jul 20;10:214. doi: 10.1186/1472-6963-10-214.BMC Health Serv Res. 2010.PMID: 20646297Free PMC article.
Taylor M, Leonardi-Bee J, Agboola S, McNeill A, Coleman T.Taylor M, et al.Addiction. 2011 Oct;106(10):1819-26. doi: 10.1111/j.1360-0443.2011.03493.x. Epub 2011 Jul 27.Addiction. 2011.PMID: 21561499