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Michel G, Petrakova O, Atasheva S, Frolov I.Michel G, et al. Among authors: petrakova o.Virology. 2007 Jun 5;362(2):475-87. doi: 10.1016/j.virol.2007.01.009. Epub 2007 Feb 12.Virology. 2007.PMID: 17292936Free PMC article.
Wang E, Petrakova O, Adams AP, Aguilar PV, Kang W, Paessler S, Volk SM, Frolov I, Weaver SC.Wang E, et al. Among authors: petrakova o.Vaccine. 2007 Oct 23;25(43):7573-81. doi: 10.1016/j.vaccine.2007.07.061. Epub 2007 Aug 15.Vaccine. 2007.PMID: 17904699Free PMC article.