title: The radiological assessment of gastric acid secretion.
mesh_terms: D004381:Duodenal Ulcer / Q000175:diagnosis*; D005260:Female; D005745:Gastric Acidity Determination; D006801:Humans; D008297:Male; D011859:Radiography; D013272:Stomach Diseases / Q000175:diagnosis*; D013276:Stomach Ulcer / Q000175:diagnosis*