Radiology of the colon.
D000388:Air; D001466:Barium Sulfate; D003106:Colon / Q000000981:diagnostic imaging*; D003108:Colonic Diseases / Q000000981:diagnostic imaging; D003110:Colonic Neoplasms / Q000000981:diagnostic imaging; D003937:Diagnosis, Differential; D004733:Enema; D006801:Humans; D007417:Intestinal Polyps / Q000000981:diagnostic imaging; D008722:Methods; D011859:Radiography; D014867:Water
D014867:Water; D001466:Barium Sulfate