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Vorachek WR, Pearson WR, Rule GS.Vorachek WR, et al. Among authors: rule gs.Proc Natl Acad Sci U S A. 1991 May 15;88(10):4443-7. doi: 10.1073/pnas.88.10.4443.Proc Natl Acad Sci U S A. 1991.PMID: 2034681Free PMC article.
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