title: Early discovery of cancer of the colon: a radiographic method.
mesh_terms: D000368:Aged; D001466:Barium Sulfate; D002648:Child; D002675:Child, Preschool; D003106:Colon / Q000000981:diagnostic imaging; D003110:Colonic Neoplasms / Q000000981:diagnostic imaging*; D004733:Enema; D005260:Female; D006801:Humans; D008297:Male; D008722:Methods; D008875:Middle Aged; D011127:Polyps / Q000000981:diagnostic imaging; D011859:Radiography
chemical_list: D001466:Barium Sulfate