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Dooley H, Stanfield RL, Brady RA, Flajnik MF.Dooley H, et al.Proc Natl Acad Sci U S A. 2006 Feb 7;103(6):1846-51. doi: 10.1073/pnas.0508341103. Epub 2006 Jan 30.Proc Natl Acad Sci U S A. 2006.PMID: 16446445Free PMC article.