title: Preoperative radiation and surgery for cancer of the sigmoid colon and rectum.
mesh_terms: D000328:Adult; D000368:Aged; D005260:Female; D006801:Humans; D008207:Lymphatic Metastasis; D008297:Male; D008875:Middle Aged; D011183:Postoperative Complications; D011879:Radiotherapy Dosage; D012004:Rectal Neoplasms / Q000401:mortality / Q000532:radiotherapy / Q000601:surgery*; D012811:Sigmoid Neoplasms / Q000401:mortality / Q000532:radiotherapy / Q000601:surgery*