title: Determination of gastric acid by Acidotest combined with Peremin in ulcerous patients.
mesh_terms: D000328:Adult; D000368:Aged; D001391:Azo Compounds; D004381:Duodenal Ulcer / Q000175:diagnosis*; D005069:Evaluation Studies as Topic; D005745:Gastric Acidity Determination / Q000379:methods*; D006632:Histamine; D006801:Humans; D007202:Indicators and Reagents; D008875:Middle Aged; D010655:Phenylenediamines; D013276:Stomach Ulcer / Q000175:diagnosis*; D013997:Time Factors
chemical_list: D001391:Azo Compounds; D007202:Indicators and Reagents; D010655:Phenylenediamines; D006632:Histamine; C016432:ethoxazene