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Kaya E, Doxzen KW, Knoll KR, Wilson RC, Strutt SC, Kranzusch PJ, Doudna JA.Kaya E, et al. Among authors: knoll kr.Proc Natl Acad Sci U S A. 2016 Apr 12;113(15):4057-62. doi: 10.1073/pnas.1524385113. Epub 2016 Mar 30.Proc Natl Acad Sci U S A. 2016.PMID: 27035975Free PMC article.