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Breña-Valle M, Serment-Guerrero J.Breña-Valle M, et al.Mutagenesis. 1998 Nov;13(6):637-41. doi: 10.1093/mutage/13.6.637.Mutagenesis. 1998.PMID: 9862197
Alcántara-Díaz D, Breña-Valle M, Serment-Guerrero J.Alcántara-Díaz D, et al. Among authors: brena valle m.Mutagenesis. 2004 Sep;19(5):349-54. doi: 10.1093/mutage/geh039.Mutagenesis. 2004.PMID: 15388806