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Otis TS, Gilly WF.Otis TS, et al. Among authors: gilly wf.Proc Natl Acad Sci U S A. 1990 Apr;87(8):2911-5. doi: 10.1073/pnas.87.8.2911.Proc Natl Acad Sci U S A. 1990.PMID: 2326255Free PMC article.