Radiotherapy of carcinoma of the rectum.
D000230:Adenocarcinoma / Q000532:radiotherapy; D006801:Humans; D008722:Methods; D010166:Palliative Care; D011182:Postoperative Care; D011300:Preoperative Care; D011379:Prognosis; D011882:Radiotherapy, High-Energy; D012004:Rectal Neoplasms / Q000532:radiotherapy* / Q000601:surgery; D012811:Sigmoid Neoplasms / Q000532:radiotherapy