title: [Survey of vaccine protection in an urban population: prevalence and geographic distribution].
mesh_terms: D002648:Child; D002675:Child, Preschool; D005069:Evaluation Studies as Topic; D006801:Humans; D013030:Spain; D014505:Urban Population; D014611:Vaccination
vernacular_title: Encuesta de cobertura vacunal en una población urbana: prevalencia y distribución geográfica.