title: The Barium enema in checkups of patients with cancer of the colon: indications and how often?
mesh_terms: D000328:Adult; D000368:Aged; D001466:Barium Sulfate; D002430:Cecal Neoplasms / Q000000981:diagnostic imaging; D003110:Colonic Neoplasms / Q000000981:diagnostic imaging*; D004733:Enema; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011859:Radiography; D012004:Rectal Neoplasms / Q000000981:diagnostic imaging; D012811:Sigmoid Neoplasms / Q000000981:diagnostic imaging
chemical_list: D001466:Barium Sulfate