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Champagne DE, Smartt CT, Ribeiro JM, James AA.Champagne DE, et al. Among authors: smartt ct.Proc Natl Acad Sci U S A. 1995 Jan 31;92(3):694-8. doi: 10.1073/pnas.92.3.694.Proc Natl Acad Sci U S A. 1995.PMID: 7846038Free PMC article.