Experience in tracing sources of infection of tuberculin converters.
D006801:Humans; D055633:Immune System Phenomena; D014373:Tuberculin; D014374:Tuberculin Test; D014376:Tuberculosis; D014397:Tuberculosis, Pulmonary / Q000517:prevention & control*
D014373:Tuberculin
TUBERCULIN REACTION; TUBERCULOSIS, PULMONARY/prevention and control