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Grandjean V, Smith J, Schofield PN, Ferguson-Smith AC.Grandjean V, et al. Among authors: schofield pn.Proc Natl Acad Sci U S A. 2000 May 9;97(10):5279-84. doi: 10.1073/pnas.080409297.Proc Natl Acad Sci U S A. 2000.PMID: 10779549Free PMC article.