title: Duodenal ulcer: does pathophysiology equal aetiology?
mesh_terms: D004381:Duodenal Ulcer / Q000188:drug therapy / Q000209:etiology* / Q000503:physiopathology; D005744:Gastric Acid / Q000378:metabolism; D005750:Gastric Juice / Q000378:metabolism; D005753:Gastric Mucosa / Q000503:physiopathology; D006801:Humans