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Kappes G, Deshpande G, Mulvey BB, Horabin JI, Schedl P.Kappes G, et al. Among authors: horabin ji.Proc Natl Acad Sci U S A. 2011 Jan 25;108(4):1543-8. doi: 10.1073/pnas.1017006108. Epub 2011 Jan 10.Proc Natl Acad Sci U S A. 2011.PMID: 21220321Free PMC article.