title: [Contribution to the study of the tuberculin test of the pre-school and school population of the District of Faro].
mesh_terms: D002648:Child; D006801:Humans; D055633:Immune System Phenomena; D007223:Infant; D012572:School Health Services; D012574:Schools; D014373:Tuberculin; D014374:Tuberculin Test
chemical_list: D014373:Tuberculin
keywords: SCHOOL HEALTH; TUBERCULIN REACTION/in infancy and childhood