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Kim HS, Ullevig SL, Zamora D, Lee CF, Asmis R.Kim HS, et al. Among authors: asmis r.Proc Natl Acad Sci U S A. 2012 Oct 9;109(41):E2803-12. doi: 10.1073/pnas.1212596109. Epub 2012 Sep 18.Proc Natl Acad Sci U S A. 2012.PMID: 22991462Free PMC article.