Tuberculin sensitivity in coal workers' pneumoconiosis.
D055008:Anthracosis; D003031:Coal; D003032:Coal Mining; D006801:Humans; D008168:Lung; D011009:Pneumoconiosis; D014373:Tuberculin; D014374:Tuberculin Test; D014376:Tuberculosis; D014397:Tuberculosis, Pulmonary
D003031:Coal; D014373:Tuberculin
COAL MINING; PNEUMOCONIOSIS; TUBERCULIN REACTION; TUBERCULOSIS, PULMONARY