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Choi SK, Yoon SR, Calabrese P, Arnheim N.Choi SK, et al. Among authors: arnheim n.Proc Natl Acad Sci U S A. 2008 Jul 22;105(29):10143-8. doi: 10.1073/pnas.0801267105. Epub 2008 Jul 16.Proc Natl Acad Sci U S A. 2008.PMID: 18632557Free PMC article.