Pre-operative radiotherapy in operable rectal cancer: interim report of a trial carried out by the Rectal Cancer Group.
D000230:Adenocarcinoma / Q000532:radiotherapy*; D002986:Clinical Trials as Topic; D006801:Humans; D011183:Postoperative Complications; D012004:Rectal Neoplasms / Q000401:mortality / Q000532:radiotherapy* / Q000601:surgery