title: Endoscopy or radiology for upper gastrointestinal symptoms?
authors.forename: D G
authors.initials: DG
authors.lastname: Colin-Jones
mesh_terms: D001466:Barium Sulfate; D003365:Costs and Cost Analysis; D004384:Duodenoscopy / Q000009:adverse effects / Q000191:economics / Q000592:standards*; D005767:Gastrointestinal Diseases / Q000175:diagnosis* / Q000000981:diagnostic imaging; D005773:Gastroscopy / Q000009:adverse effects / Q000191:economics / Q000592:standards*; D006801:Humans; D011859:Radiography
chemical_list: D001466:Barium Sulfate