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Akhmedov AT, Bertrand P, Corteggiani E, Lopez BS.Akhmedov AT, et al. Among authors: bertrand p.Proc Natl Acad Sci U S A. 1995 Feb 28;92(5):1729-33. doi: 10.1073/pnas.92.5.1729.Proc Natl Acad Sci U S A. 1995.PMID: 7878049Free PMC article.