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Peterson JR, Lokey RS, Mitchison TJ, Kirschner MW.Peterson JR, et al. Among authors: kirschner mw.Proc Natl Acad Sci U S A. 2001 Sep 11;98(19):10624-9. doi: 10.1073/pnas.201393198.Proc Natl Acad Sci U S A. 2001.PMID: 11553809Free PMC article.