Major abdominal surgery in patients over 70 years of age: results during 1962 to 1966 compared with those during 1950 to 1959.
D000367:Age Factors; D000368:Aged; D002318:Cardiovascular Diseases / Q000150:complications; D005767:Gastrointestinal Diseases / Q000150:complications / Q000601:surgery*; D006801:Humans; D008171:Lung Diseases / Q000150:complications; D008297:Male; D011183:Postoperative Complications / Q000453:epidemiology* / Q000401:mortality; D012140:Respiratory Tract Diseases / Q000150:complications; D014570:Urologic Diseases / Q000150:complications