[Observation of the incidence of tuberculosis in medical students].
D000293:Adolescent; D000328:Adult; D001500:BCG Vaccine / Q000276:immunology; D002681:China; D005260:Female; D006801:Humans; D008297:Male; D013337:Students, Medical; D014374:Tuberculin Test; D014376:Tuberculosis / Q000453:epidemiology*
D001500:BCG Vaccine