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Sandberg JK, Stoddart CA, Brilot F, Jordan KA, Nixon DF.Sandberg JK, et al. Among authors: nixon df.Proc Natl Acad Sci U S A. 2004 May 4;101(18):7058-63. doi: 10.1073/pnas.0305986101. Epub 2004 Apr 26.Proc Natl Acad Sci U S A. 2004.PMID: 15118099Free PMC article.