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Kohn JE, Plaxco KW.Kohn JE, et al. Among authors: plaxco kw.Proc Natl Acad Sci U S A. 2005 Aug 2;102(31):10841-5. doi: 10.1073/pnas.0503055102. Epub 2005 Jul 26.Proc Natl Acad Sci U S A. 2005.PMID: 16046542Free PMC article.