Influence of the prevalence of infection on tuberculin skin testing programs.
D003365:Costs and Cost Analysis; D005189:False Positive Reactions; D006801:Humans; D008403:Mass Screening; D012572:School Health Services; D013223:Statistics as Topic; D014374:Tuberculin Test; D014376:Tuberculosis / Q000453:epidemiology* / Q000517:prevention & control; D014481:United States