title: The role of repeated sputum examinations in the diagnosis of pulmonary tuberculosis.
mesh_terms: D000293:Adolescent; D000328:Adult; D001431:Bacteriological Techniques; D002648:Child; D006801:Humans; D008722:Methods; D009169:Mycobacterium tuberculosis / Q000302:isolation & purification; D013183:Sputum / Q000382:microbiology*; D013194:Staining and Labeling; D014397:Tuberculosis, Pulmonary / Q000175:diagnosis* / Q000382:microbiology