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Eckert KA, Kunkel TA.Eckert KA, et al. Among authors: kunkel ta.Nucleic Acids Res. 1993 Nov 11;21(22):5212-20. doi: 10.1093/nar/21.22.5212.Nucleic Acids Res. 1993.PMID: 7504813Free PMC article.