[Evaluation of fatal cases in surgery of the digestive tract in the patients over 70].
D000368:Aged; D005260:Female; D005767:Gastrointestinal Diseases / Q000601:surgery*; D005770:Gastrointestinal Neoplasms / Q000601:surgery*; D006801:Humans; D008297:Male; D011183:Postoperative Complications / Q000401:mortality*