Alternative operations for ulcerative colitis.
D001003:Anal Canal / Q000601:surgery; D003082:Colectomy; D003093:Colitis, Ulcerative / Q000601:surgery*; D003106:Colon / Q000601:surgery; D006801:Humans; D007081:Ileostomy / Q000379:methods; D007082:Ileum / Q000601:surgery; D007413:Intestinal Mucosa / Q000601:surgery; D012007:Rectum / Q000601:surgery