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Zetola NM, Bernstein K, Ahrens K, Marcus JL, Philip S, Nieri G, Jones D, Hare CB, Hsu L, Scheer S, Klausner JD.Zetola NM, et al. Among authors: ahrens k.BMC Public Health. 2009 Jan 14;9:17. doi: 10.1186/1471-2458-9-17.BMC Public Health. 2009.PMID: 19144168Free PMC article.
Philip SS, Ahrens K, Shayevich C, de la Roca R, Williams M, Wilson D, Bernstein K, Klausner JD.Philip SS, et al. Among authors: ahrens k.Clin Infect Dis. 2008 Nov 15;47(10):e79-82. doi: 10.1086/592696.Clin Infect Dis. 2008.PMID: 18840082