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Børud B, Viburiene R, Hartley MD, Paulsen BS, Egge-Jacobsen W, Imperiali B, Koomey M.Børud B, et al.Proc Natl Acad Sci U S A. 2011 Jun 7;108(23):9643-8. doi: 10.1073/pnas.1103321108. Epub 2011 May 23.Proc Natl Acad Sci U S A. 2011.PMID: 21606362Free PMC article.