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Roberts CW, Galusha SA, McMenamin ME, Fletcher CD, Orkin SH.Roberts CW, et al. Among authors: mcmenamin me.Proc Natl Acad Sci U S A. 2000 Dec 5;97(25):13796-800. doi: 10.1073/pnas.250492697.Proc Natl Acad Sci U S A. 2000.PMID: 11095756Free PMC article.