Science (2013) - Comment
pubmed: 23287718  doi: 10.1126/science.1231143  issn: 1095-9203  issn: 0036-8075 

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Le Cong, F. A. Ran, David Cox, Shuailiang Lin, Robert Barretto, Naomi Habib, Patrick D Hsu, Xuebing Wu, Wenyan Jiang, Luciano A Marraffini, Feng Zhang