Editorial: Occult perforations.
D003424:Crohn Disease / Q000150:complications; D004238:Diverticulitis / Q000150:complications; D005402:Fistula / Q000209:etiology; D006801:Humans; D007414:Intestinal Neoplasms / Q000150:complications; D007416:Intestinal Perforation / Q000209:etiology