Gastric outlet obstruction malignant until proved otherwise.
Johnson
C D
CD
D004381:Duodenal Ulcer / Q000150:complications; D017219:Gastric Outlet Obstruction / Q000209:etiology*; D006801:Humans; D010190:Pancreatic Neoplasms / Q000150:complications*; D013274:Stomach Neoplasms / Q000150:complications*