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Leonetti MD, Yuan P, Hsiung Y, Mackinnon R.Leonetti MD, et al. Among authors: yuan p.Proc Natl Acad Sci U S A. 2012 Nov 20;109(47):19274-9. doi: 10.1073/pnas.1215078109. Epub 2012 Nov 5.Proc Natl Acad Sci U S A. 2012.PMID: 23129643Free PMC article.