When is the pull-through operation justifiable?
D001003:Anal Canal / Q000033:anatomy & histology / Q000601:surgery*; D003106:Colon / Q000601:surgery*; D005260:Female; D006801:Humans; D007413:Intestinal Mucosa / Q000601:surgery; D007420:Intestine, Large / Q000503:physiopathology; D008297:Male; D008722:Methods; D009132:Muscles / Q000601:surgery; D011183:Postoperative Complications; D012004:Rectal Neoplasms / Q000601:surgery; D012007:Rectum / Q000601:surgery*