Postoperative gastrointestinal fistulas.
D003108:Colonic Diseases / Q000628:therapy; D004322:Drainage; D004378:Duodenal Diseases / Q000628:therapy; D005747:Gastric Fistula / Q000517:prevention & control / Q000628:therapy*; D006801:Humans; D007049:Iatrogenic Disease; D007082:Ileum; D017053:Infection Control; D007412:Intestinal Fistula / Q000517:prevention & control / Q000628:therapy*; D007415:Intestinal Obstruction / Q000628:therapy; D009747:Nutritional Physiological Phenomena; D011183:Postoperative Complications / Q000628:therapy*; D014882:Water-Electrolyte Balance