title: Preoperative irradiation of operable adenocarcinoma of the rectum and rectosigmoid colon.
mesh_terms: D000230:Adenocarcinoma / Q000401:mortality / Q000532:radiotherapy* / Q000601:surgery; D002986:Clinical Trials as Topic; D006801:Humans; D008207:Lymphatic Metastasis; D008297:Male; D011879:Radiotherapy Dosage; D012004:Rectal Neoplasms / Q000401:mortality / Q000532:radiotherapy* / Q000601:surgery; D012811:Sigmoid Neoplasms / Q000401:mortality / Q000532:radiotherapy* / Q000601:surgery