title: [Epidemiological studies on the infectivity of chronic tubercle bacilli excreters].
mesh_terms: D000328:Adult; D002908:Chronic Disease; D005260:Female; D006801:Humans; D007564:Japan; D008297:Male; D008875:Middle Aged; D013997:Time Factors; D014397:Tuberculosis, Pulmonary / Q000453:epidemiology* / Q000635:transmission