title: [Niacin test for differentiation of mycobacterium tuberculosis var. hominis from other acid-fast bacilli. IX. Niacin test on human tubercle bacilli rendered resistant to multiple drugs in vitro].
mesh_terms: D004352:Drug Resistance, Microbial; D009161:Mycobacterium / Q000302:isolation & purification*; D009169:Mycobacterium tuberculosis / Q000302:isolation & purification*; D009539:Nicotinic Acids
chemical_list: D009539:Nicotinic Acids