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Giehm L, Svergun DI, Otzen DE, Vestergaard B.Giehm L, et al. Among authors: otzen de.Proc Natl Acad Sci U S A. 2011 Feb 22;108(8):3246-51. doi: 10.1073/pnas.1013225108. Epub 2011 Feb 7.Proc Natl Acad Sci U S A. 2011.PMID: 21300904Free PMC article.