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Krane DE, Clark AG, Cheng JF, Hardison RC.Krane DE, et al. Among authors: hardison rc.Mol Biol Evol. 1991 Jan;8(1):1-30. doi: 10.1093/oxfordjournals.molbev.a040631.Mol Biol Evol. 1991.PMID: 2002760