title: Aetiology of duodenal ulcer: an investigation into the buffering action and effect on pepsin of bran and unrefined carbohydrate foods.
mesh_terms: D000349:Africa; D002021:Buffers; D004040:Dietary Carbohydrates / Q000008:administration & dosage*; D004381:Duodenal Ulcer / Q000178:diet therapy / Q000209:etiology*; D002523:Edible Grain; D005750:Gastric Juice / Q000378:metabolism; D006801:Humans; D006863:Hydrogen-Ion Concentration; D007194:India; D010434:Pepsin A / Q000378:metabolism / Q000502:physiology*
chemical_list: D002021:Buffers; D004040:Dietary Carbohydrates; D010434:Pepsin A