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Comas I, Moya A, Azad RK, Lawrence JG, Gonzalez-Candelas F.Comas I, et al. Among authors: lawrence jg.Mol Biol Evol. 2006 Nov;23(11):2049-57. doi: 10.1093/molbev/msl075. Epub 2006 Aug 1.Mol Biol Evol. 2006.PMID: 16882701