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Millen KJ, Steshina EY, Iskusnykh IY, Chizhikov VV.Millen KJ, et al. Among authors: chizhikov vv.Proc Natl Acad Sci U S A. 2014 Apr 29;111(17):E1777-86. doi: 10.1073/pnas.1315024111. Epub 2014 Apr 14.Proc Natl Acad Sci U S A. 2014.PMID: 24733890Free PMC article.