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Ramana CV, Boldogh I, Izumi T, Mitra S.Ramana CV, et al. Among authors: mitra s.Proc Natl Acad Sci U S A. 1998 Apr 28;95(9):5061-6. doi: 10.1073/pnas.95.9.5061.Proc Natl Acad Sci U S A. 1998.PMID: 9560228Free PMC article.