title: On evaluating upper gastrointestinal symptoms by provocative study.
mesh_terms: D000343:Afferent Loop Syndrome / Q000000981:diagnostic imaging; D000368:Aged; D001466:Barium Sulfate; D003951:Diagnostic Errors; D004381:Duodenal Ulcer / Q000601:surgery; D004435:Eating; D004940:Esophageal Stenosis / Q000000981:diagnostic imaging; D005260:Female; D005767:Gastrointestinal Diseases / Q000000981:diagnostic imaging*; D006548:Hernia, Diaphragmatic / Q000000981:diagnostic imaging; D006801:Humans; D007583:Jejunum / Q000000981:diagnostic imaging; D008297:Male; D008722:Methods; D008875:Middle Aged; D011183:Postoperative Complications / Q000000981:diagnostic imaging; D011187:Posture; D011859:Radiography
chemical_list: D001466:Barium Sulfate