Emergency abdominal surgery in the elderly.
Parker
M C
MC
D000005:Abdomen / Q000601:surgery*; D000368:Aged; D004630:Emergencies; D006471:Gastrointestinal Hemorrhage / Q000401:mortality / Q000601:surgery; D006801:Humans; D007415:Intestinal Obstruction / Q000401:mortality / Q000601:surgery