title: Colonoscopy versus double-contrast barium enema.
authors.forename: D B
authors.initials: DB
authors.lastname: Nelson
mesh_terms: D011125:Adenomatous Polyposis Coli / Q000175:diagnosis* / Q000601:surgery; D001464:Barium; D003113:Colonoscopy / Q000592:standards*; D015179:Colorectal Neoplasms / Q000175:diagnosis* / Q000601:surgery; D004733:Enema; D005500:Follow-Up Studies; D006801:Humans; D009364:Neoplasm Recurrence, Local / Q000175:diagnosis; D011159:Population Surveillance / Q000379:methods; D011184:Postoperative Period; D011446:Prospective Studies; D016037:Single-Blind Method
chemical_list: D001464:Barium