title: Diagnostic problems in peptic ulceration: a radiologist's view.
mesh_terms: D001466:Barium Sulfate; D003951:Diagnostic Errors; D004724:Endoscopy; D006801:Humans; D010437:Peptic Ulcer / Q000000981:diagnostic imaging*; D011859:Radiography
chemical_list: D001466:Barium Sulfate