Peptic diseases.
D001241:Aspirin / Q000009:adverse effects; D004386:Duodenum / Q000000981:diagnostic imaging / Q000601:surgery; D005750:Gastric Juice / Q000378:metabolism; D005769:Gastrointestinal Motility; D006801:Humans; D010434:Pepsin A / Q000378:metabolism; D010437:Peptic Ulcer / Q000175:diagnosis / Q000209:etiology / Q000628:therapy; D011859:Radiography; D012106:Research; D012907:Smoking; D013270:Stomach / Q000000981:diagnostic imaging / Q000601:surgery
D010434:Pepsin A; D001241:Aspirin