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Lazcano-Ponce E, Salmerón-Castro J, García-Carrancá A, Aranda-Flores C, Madrid-Marina V, Gómez-Altamirano CM, Martínez-Montañez OG.Lazcano-Ponce E, et al.Salud Publica Mex. 2009 Jul-Aug;51(4):336-41. doi: 10.1590/s0036-36342009000400011.Salud Publica Mex. 2009.PMID: 19668929Spanish.No abstract available.
Burguete A, Bermúdez-Morales VH, Madrid-Marina V.Burguete A, et al.Salud Publica Mex. 2009;51 Suppl 3:S379-85. doi: 10.1590/s0036-36342009000900003.Salud Publica Mex. 2009.PMID: 20464211Review.Spanish.