title: [4 years of allergo-tuberculin and photoflurographic findings on the elementary schol population of the municipality of Ferrara].
mesh_terms: D002648:Child; D006801:Humans; D055633:Immune System Phenomena; D007223:Infant; D012572:School Health Services; D014373:Tuberculin; D014374:Tuberculin Test
chemical_list: D014373:Tuberculin
keywords: SCHOOL HEALTH; TUBERCULIN REACTION/in infancy and childhood