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Rook GA.Rook GA.Proc Natl Acad Sci U S A. 2013 Nov 12;110(46):18360-7. doi: 10.1073/pnas.1313731110. Epub 2013 Oct 23.Proc Natl Acad Sci U S A. 2013.PMID: 24154724Free PMC article.Review.