[Calcified foci in school pupils as an index of prevalence of tuberculosis].
D000293:Adolescent; D002114:Calcinosis / Q000000981:diagnostic imaging / Q000453:epidemiology*; D002648:Child; D006801:Humans; D007564:Japan; D008403:Mass Screening; D011859:Radiography; D013896:Thoracic Diseases / Q000000981:diagnostic imaging / Q000453:epidemiology*; D014397:Tuberculosis, Pulmonary / Q000000981:diagnostic imaging / Q000453:epidemiology*