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Dethier VG, Hanson FE.Dethier VG, et al.Proc Natl Acad Sci U S A. 1968 Aug;60(4):1296-303. doi: 10.1073/pnas.60.4.1296.Proc Natl Acad Sci U S A. 1968.PMID: 5244738Free PMC article.No abstract available.