Screening for abdominal aortic aneurysms.
D017542:Aneurysm, Ruptured / Q000517:prevention & control*; D017544:Aortic Aneurysm, Abdominal / Q000000981:diagnostic imaging*; D006801:Humans; D008297:Male; D008403:Mass Screening / Q000191:economics; D008875:Middle Aged; D014463:Ultrasonography