title: Method for double-contrast study of the colon.
mesh_terms: D000328:Adult; D000368:Aged; D001466:Barium Sulfate; D002648:Child; D003106:Colon / Q000000981:diagnostic imaging*; D003108:Colonic Diseases / Q000000981:diagnostic imaging; D004733:Enema / Q000295:instrumentation; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011859:Radiography / Q000379:methods*
chemical_list: D001466:Barium Sulfate