[Tubercullin allergy in school children of Bologna. Statistical changes in a decade (1951-1960)].
D002648:Child; D006801:Humans; D006967:Hypersensitivity; D055633:Immune System Phenomena; D007223:Infant; D012572:School Health Services; D012574:Schools; D014373:Tuberculin; D014374:Tuberculin Test
D014373:Tuberculin
SCHOOL HEALTH; TUBERCULIN REACTION/in infancy and childhood