Anterior and low anterior resection.
D000230:Adenocarcinoma / Q000601:surgery*; D000328:Adult; D000368:Aged; D005260:Female; D006801:Humans; D008297:Male; D008722:Methods; D008875:Middle Aged; D011183:Postoperative Complications / Q000401:mortality; D012004:Rectal Neoplasms / Q000601:surgery*; D012007:Rectum / Q000601:surgery*