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Hoopes BC, McClure WR.Hoopes BC, et al. Among authors: mcclure wr.Proc Natl Acad Sci U S A. 1985 May;82(10):3134-8. doi: 10.1073/pnas.82.10.3134.Proc Natl Acad Sci U S A. 1985.PMID: 3159014Free PMC article.