Elective surgery for small abdominal aortic aneurysms.
D000368:Aged; D000369:Aged, 80 and over; D001012:Aorta, Abdominal; D001014:Aortic Aneurysm / Q000473:pathology / Q000601:surgery*; D001019:Aortic Rupture / Q000453:epidemiology / Q000401:mortality; D006801:Humans; D008297:Male; D008875:Middle Aged