Demonstration of acid-fast bacilli in sputum smears.
D006801:Humans; D008856:Microscopy, Fluorescence / Q000379:methods; D009169:Mycobacterium tuberculosis / Q000302:isolation & purification*; D013183:Sputum / Q000382:microbiology*; D013194:Staining and Labeling; D014397:Tuberculosis, Pulmonary / Q000382:microbiology*