Incidence of tuberculosis in persons of known tuberculin reactivity and its bearing on BCG vaccination against tuberculosis (with special reference to nurses and medical students).
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D001500:BCG Vaccine; D006801:Humans; D015994:Incidence; D009163:Mycobacterium bovis; D009726:Nurses; D013337:Students, Medical; D014373:Tuberculin; D014374:Tuberculin Test; D014376:Tuberculosis / Q000453:epidemiology* / Q000706:statistics & numerical data*; D014611:Vaccination
D001500:BCG Vaccine; D014373:Tuberculin