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Levine DS, Sanchez CA, Rabinovitch PS, Reid BJ.Levine DS, et al. Among authors: reid bj.Proc Natl Acad Sci U S A. 1991 Aug 1;88(15):6427-31. doi: 10.1073/pnas.88.15.6427.Proc Natl Acad Sci U S A. 1991.PMID: 1650467Free PMC article.