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Rovito SM, Parra-Olea G, Vásquez-Almazán CR, Papenfuss TJ, Wake DB.Rovito SM, et al. Among authors: vasquez almazan cr.Proc Natl Acad Sci U S A. 2009 Mar 3;106(9):3231-6. doi: 10.1073/pnas.0813051106. Epub 2009 Feb 9.Proc Natl Acad Sci U S A. 2009.PMID: 19204286Free PMC article.