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Yang J, Ortega-Hernández J, Gerber S, Butterfield NJ, Hou JB, Lan T, Zhang XG.Yang J, et al.Proc Natl Acad Sci U S A. 2015 Jul 14;112(28):8678-83. doi: 10.1073/pnas.1505596112. Epub 2015 Jun 29.Proc Natl Acad Sci U S A. 2015.PMID: 26124122Free PMC article.