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Grakoui A, McCourt DW, Wychowski C, Feinstone SM, Rice CM.Grakoui A, et al. Among authors: feinstone sm.Proc Natl Acad Sci U S A. 1993 Nov 15;90(22):10583-7. doi: 10.1073/pnas.90.22.10583.Proc Natl Acad Sci U S A. 1993.PMID: 8248148Free PMC article.