[Colored carboxylic resins in the evaluation of the hydrochloric acid content of the stomach].
D005750:Gastric Juice / Q000737:chemistry*; D006851:Hydrochloric Acid; D012116:Resins, Plant; D013270:Stomach
D012116:Resins, Plant; D006851:Hydrochloric Acid
GASTRIC JUICE/chemistry