The blood level determinations of PAS and isoniazid with vanillin.
D010131:Aminosalicylic Acid / Q000097:blood*; D001547:Benzaldehydes; D001769:Blood; D007538:Isoniazid; D009525:Niacin; D009539:Nicotinic Acids / Q000097:blood*; D013053:Spectrophotometry
D001547:Benzaldehydes; D009539:Nicotinic Acids; D009525:Niacin; D010131:Aminosalicylic Acid; C100058:vanillin; D007538:Isoniazid
BLOOD; NICOTINIC ACID ISOMERS/in blood; PARA-AMINOSALICYLIC ACID/in blood; SPECTROPHOTOMETRY