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Paricio N, Pérez-Alonso M, Martínez-Sebastián MJ, de Frutos R.Paricio N, et al.Nucleic Acids Res. 1991 Dec 25;19(24):6713-8. doi: 10.1093/nar/19.24.6713.Nucleic Acids Res. 1991.PMID: 1662362Free PMC article.