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Keating KM, Brewer NT, Gottlieb SL, Liddon N, Ludema C, Smith JS.Keating KM, et al. Among authors: brewer nt.J Adolesc Health. 2008 Oct;43(4 Suppl):S61-7. doi: 10.1016/j.jadohealth.2008.06.015.J Adolesc Health. 2008.PMID: 18809147