Concentrations of para-aminosalicylic acid (PAS) and isonicotinic acid hydrazide in sputum.
D010131:Aminosalicylic Acid / Q000032:analysis*; D007536:Isomerism; D007538:Isoniazid; D009525:Niacin; D009539:Nicotinic Acids / Q000032:analysis*; D013183:Sputum
D009539:Nicotinic Acids; D009525:Niacin; D010131:Aminosalicylic Acid; D007538:Isoniazid
NICOTINIC ACID ISOMERS/determination; PARA-AMINOSALICYLIC ACID/determination; SPUTUM