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Wanner KW, Nichols AS, Walden KK, Brockmann A, Luetje CW, Robertson HM.Wanner KW, et al. Among authors: walden kk.Proc Natl Acad Sci U S A. 2007 Sep 4;104(36):14383-8. doi: 10.1073/pnas.0705459104. Epub 2007 Aug 30.Proc Natl Acad Sci U S A. 2007.PMID: 17761794Free PMC article.