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Torre V, Matthews HR, Lamb TD.Torre V, et al. Among authors: lamb td.Proc Natl Acad Sci U S A. 1986 Sep;83(18):7109-13. doi: 10.1073/pnas.83.18.7109.Proc Natl Acad Sci U S A. 1986.PMID: 3018756Free PMC article.