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Morris M, Kurth AE, Hamilton DT, Moody J, Wakefield S.Morris M, et al. Among authors: kurth ae.Am J Public Health. 2009 Jun;99(6):1023-31. doi: 10.2105/AJPH.2008.147835. Epub 2009 Apr 16.Am J Public Health. 2009.PMID: 19372508Free PMC article.