Carcinoma of the sigmoid and rectum: selection of operative procedure.
D003082:Colectomy; D005500:Follow-Up Studies; D006801:Humans; D011379:Prognosis; D012004:Rectal Neoplasms / Q000401:mortality / Q000601:surgery*; D012811:Sigmoid Neoplasms / Q000401:mortality / Q000601:surgery*