title: Co-existence of pancreatic carcinoma and duodenal ulcer; report of three cases.
mesh_terms: D004381:Duodenal Ulcer; D006801:Humans; D009369:Neoplasms; D010190:Pancreatic Neoplasms; D010437:Peptic Ulcer
keywords: PANCREAS/cancer; PEPTIC ULCER/cancer and peptic ulcer