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Skalnik DG, Dorfman DM, Perkins AS, Jenkins NA, Copeland NG, Orkin SH.Skalnik DG, et al. Among authors: orkin sh.Proc Natl Acad Sci U S A. 1991 Oct 1;88(19):8505-9. doi: 10.1073/pnas.88.19.8505.Proc Natl Acad Sci U S A. 1991.PMID: 1656446Free PMC article.