Nature (2015) - Comments
pubmed: 25924069  doi: 10.1038/nature14423  issn: 0028-0836  issn: 1476-4687 

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Xing Xu, Xiaoting Zheng, Corwin Sullivan, Xiaoli Wang, Lida Xing, Yan Wang, Xiaomei Zhang, Jingmai K. O’Connor, Fucheng Zhang, Yanhong Pan