title: The upper GI series.
mesh_terms: D000284:Administration, Oral; D001466:Barium Sulfate / Q000008:administration & dosage; D003287:Contrast Media; D004064:Digestive System / Q000000981:diagnostic imaging*; D005471:Fluoroscopy / Q000379:methods* / Q000592:standards; D005767:Gastrointestinal Diseases / Q000000981:diagnostic imaging; D006801:Humans; D010353:Patient Education as Topic
chemical_list: D003287:Contrast Media; D001466:Barium Sulfate