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DeCoursey TE, Cherny VV, Zhou W, Thomas LL.DeCoursey TE, et al.Proc Natl Acad Sci U S A. 2000 Jun 6;97(12):6885-9. doi: 10.1073/pnas.100047297.Proc Natl Acad Sci U S A. 2000.PMID: 10823889Free PMC article.