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Scolnick EM, Papageorge AG, Shih TY.Scolnick EM, et al. Among authors: shih ty.Proc Natl Acad Sci U S A. 1979 Oct;76(10):5355-9. doi: 10.1073/pnas.76.10.5355.Proc Natl Acad Sci U S A. 1979.PMID: 228288Free PMC article.