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Stumpo DJ, Blackshear PJ.Stumpo DJ, et al. Among authors: blackshear pj.Proc Natl Acad Sci U S A. 1986 Dec;83(24):9453-7. doi: 10.1073/pnas.83.24.9453.Proc Natl Acad Sci U S A. 1986.PMID: 3540941Free PMC article.