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Kinlin LM, Spain CV, Ng V, Johnson CC, White AN, Fisman DN.Kinlin LM, et al. Among authors: fisman dn.Am J Epidemiol. 2009 Mar 1;169(5):588-95. doi: 10.1093/aje/kwn383. Epub 2009 Jan 22.Am J Epidemiol. 2009.PMID: 19164421Free PMC article.