title: Intractability of ulcers of the upper gastroduodenal tract.
mesh_terms: D000328:Adult; D002318:Cardiovascular Diseases / Q000150:complications; D064420:Drug-Related Side Effects and Adverse Reactions; D004380:Duodenal Obstruction / Q000150:complications; D004381:Duodenal Ulcer / Q000209:etiology / Q000601:surgery*; D005260:Female; D005743:Gastrectomy; D005750:Gastric Juice / Q000378:metabolism; D005756:Gastritis / Q000150:complications; D006801:Humans; D008103:Liver Cirrhosis / Q000150:complications; D008171:Lung Diseases / Q000150:complications; D008297:Male; D008875:Middle Aged; D010437:Peptic Ulcer / Q000150:complications / Q000209:etiology / Q000601:surgery*; D011708:Pylorus; D013312:Stress, Physiological / Q000150:complications; D015043:Zollinger-Ellison Syndrome / Q000150:complications