Double contrast radiographic examinations of the upper gastrointestinal tract using barium spray technic.
D000336:Aerosols; D001466:Barium Sulfate; D004386:Duodenum; D005767:Gastrointestinal Diseases / Q000175:diagnosis; D006801:Humans; D011859:Radiography / Q000295:instrumentation; D013270:Stomach
D000336:Aerosols; D001466:Barium Sulfate