title: [Prevalence of tubercular infection in first-grade of elementary school of La Rioja].
authors.forename: M J
authors.initials: MJ
authors.lastname: López de Valdivielso
authors.forename: P
authors.initials: P
authors.lastname: Díez-Ripollés
authors.forename: E
authors.initials: E
authors.lastname: Ramalle-Gómara
mesh_terms: D002648:Child; D006801:Humans; D015995:Prevalence; D013030:Spain / Q000453:epidemiology; D014374:Tuberculin Test; D014376:Tuberculosis / Q000175:diagnosis / Q000453:epidemiology*
vernacular_title: Prevalencia de infección tuberculosa en escolares de primero de primaria de La Rioja.