Proceedings of the National Academy of Sciences (2012) - Comments
pubmed: 22711809  doi: 10.1073/pnas.1204453109  issn: 0027-8424  issn: 1091-6490 

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Ted E. Bunch, Robert E. Hermes, Andrew M.T. Moore, Douglas J. Kennett, James C. Weaver, James H. Wittke, Paul S. DeCarli, James L. Bischoff, Gordon C. Hillman, George A. Howard, David R. Kimbel, Gunther Kletetschka, Carl P. Lipo, Sachiko Sakai, Zsolt Revay, Allen West, Richard B. Firestone, James P. Kennett