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Lyon RM, McNally SJ, Hawkins M, MacKinnon M.Lyon RM, et al.Emerg Med J. 2010 May;27(5):355-8. doi: 10.1136/emj.2008.071407.Emerg Med J. 2010.PMID: 20442163
Miller ER, McNally S, Wallace J, Schlichthorst M.Miller ER, et al. Among authors: mcnally s.BMC Public Health. 2012 Aug 18;12:672. doi: 10.1186/1471-2458-12-672.BMC Public Health. 2012.PMID: 22900973Free PMC article.Review.