title: Reagent-impregnated paper strips for detection of niacin.
mesh_terms: D007202:Indicators and Reagents; D008722:Methods; D009169:Mycobacterium tuberculosis / Q000302:isolation & purification*; D009539:Nicotinic Acids / Q000032:analysis*
chemical_list: D007202:Indicators and Reagents; D009539:Nicotinic Acids