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Sanyal K, Carbon J.Sanyal K, et al. Among authors: carbon j.Proc Natl Acad Sci U S A. 2002 Oct 1;99(20):12969-74. doi: 10.1073/pnas.162488299. Epub 2002 Sep 23.Proc Natl Acad Sci U S A. 2002.PMID: 12271118Free PMC article.