Upper gastrointestinal studies with acid and alkaline barium sulfate suspensions.
D001466:Barium Sulfate; D004386:Duodenum / Q000187:drug effects; D005767:Gastrointestinal Diseases / Q000000981:diagnostic imaging*; D006801:Humans; D006851:Hydrochloric Acid; D006863:Hydrogen-Ion Concentration; D007421:Intestine, Small / Q000000981:diagnostic imaging*; D007583:Jejunum / Q000187:drug effects; D011859:Radiography; D012972:Sodium Hydroxide; D013270:Stomach / Q000000981:diagnostic imaging* / Q000187:drug effects; D013679:Technology, Radiologic
D001466:Barium Sulfate; D012972:Sodium Hydroxide; D006851:Hydrochloric Acid