The prevalence of pulmonary tuberculosis in a Northern Transvaal copper-mine related to the importance of pre-employment radiographs.
D003300:Copper; D004651:Employment; D006801:Humans; D008168:Lung; D016272:Occupational Health; D015995:Prevalence; D014376:Tuberculosis; D014397:Tuberculosis, Pulmonary / Q000517:prevention & control*
D003300:Copper
INDUSTRIAL HYGIENE; TUBERCULOSIS, PULMONARY/prevention and control