title: A Heaf survey and tuberculosis control programme in African primary school children in the City of Salisbury.
mesh_terms: D000293:Adolescent; D001500:BCG Vaccine; D002648:Child; D005260:Female; D006801:Humans; D008297:Male; D008403:Mass Screening; D014374:Tuberculin Test; D014397:Tuberculosis, Pulmonary / Q000453:epidemiology* / Q000517:prevention & control; D015030:Zimbabwe
chemical_list: D001500:BCG Vaccine