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Syed AS, Sansone A, Nadler W, Manzini I, Korsching SI.Syed AS, et al.Proc Natl Acad Sci U S A. 2013 May 7;110(19):7714-9. doi: 10.1073/pnas.1302088110. Epub 2013 Apr 23.Proc Natl Acad Sci U S A. 2013.PMID: 23613591Free PMC article.