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Hagler J, Shuman S.Hagler J, et al.Proc Natl Acad Sci U S A. 1992 Nov 1;89(21):10099-103. doi: 10.1073/pnas.89.21.10099.Proc Natl Acad Sci U S A. 1992.PMID: 1438198Free PMC article.