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Yoo JU, Kresina TF, Malemud CJ, Goldberg VM.Yoo JU, et al. Among authors: goldberg vm.Proc Natl Acad Sci U S A. 1987 Feb;84(3):832-6. doi: 10.1073/pnas.84.3.832.Proc Natl Acad Sci U S A. 1987.PMID: 2433690Free PMC article.