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Botchway SW, Charnley M, Haycock JW, Parker AW, Rochester DL, Weinstein JA, Williams JA.Botchway SW, et al.Proc Natl Acad Sci U S A. 2008 Oct 21;105(42):16071-6. doi: 10.1073/pnas.0804071105. Epub 2008 Oct 13.Proc Natl Acad Sci U S A. 2008.PMID: 18852476Free PMC article.