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Yeh CI, Xing D, Williams PE, Shapley RM.Yeh CI, et al. Among authors: xing d.Proc Natl Acad Sci U S A. 2009 Aug 25;106(34):14652-7. doi: 10.1073/pnas.0907406106. Epub 2009 Aug 17.Proc Natl Acad Sci U S A. 2009.PMID: 19706551Free PMC article.