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González-Llano O, Mancías-Guerra C, Cantú-Rodríguez OG, Hernández-Garza NE, Quiroga-Rivera A, Herrera-Garza JL, Jaime-Pérez JC, Gómez-Almaguer D.González-Llano O, et al.Arch Med Res. 1999 Jul-Aug;30(4):338-40. doi: 10.1016/s0188-0128(99)00037-8.Arch Med Res. 1999.PMID: 10573638