[Tuberculin observations and tubercular morbidity in the school populations of 13 rural communities of the province].
D006801:Humans; D009017:Morbidity; D012424:Rural Population; D012574:Schools; D014373:Tuberculin; D014374:Tuberculin Test / Q000706:statistics & numerical data*; D014376:Tuberculosis / Q000453:epidemiology*
D014373:Tuberculin
TUBERCULIN REACTION/statistics; TUBERCULOSIS/epidemiology