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Walldén K, Williams R, Yan J, Lian PW, Wang L, Thalassinos K, Orlova EV, Waksman G.Walldén K, et al.Proc Natl Acad Sci U S A. 2012 Jul 10;109(28):11348-53. doi: 10.1073/pnas.1201428109. Epub 2012 Jun 27.Proc Natl Acad Sci U S A. 2012.PMID: 22745169Free PMC article.