Please use this identifier to cite or link to this item: https://hdl.handle.net/10419/71837 
Year of Publication: 
Feb-2013
Citation: 
[Journal:] Proceedings of the National Academy of Sciences [Volume:] 110 [Issue:] 9 [Publisher:] National Academy of Sciences [Place:] Washington, DC [Year:] 2013 [Pages:] E786-
Publisher: 
National Academy of Sciences, Washington, D.C.
Published Version’s DOI: 
Additional Information: 
The final version is available at PNAS Online: http://dx.doi.org/10.1073/pnas.1221451110
Document Type: 
Article
Document Version: 
Accepted Manuscript (Postprint)

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