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Goldberg MA, Glass GA, Cunningham JM, Bunn HF.Goldberg MA, et al. Among authors: bunn hf.Proc Natl Acad Sci U S A. 1987 Nov;84(22):7972-6. doi: 10.1073/pnas.84.22.7972.Proc Natl Acad Sci U S A. 1987.PMID: 2825172Free PMC article.