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Hurtado-Sierra DE, Medina-Chicué EM, Sarmiento-Limas CA, Godoy JA.Hurtado-Sierra DE, et al.Rev Salud Publica (Bogota). 2015 Jan-Feb;17(1):74-84.Rev Salud Publica (Bogota). 2015.PMID: 26437702Free article.Spanish.