"Opportunistic" screening.
Law
M
M
D000005:Abdomen / Q000000981:diagnostic imaging*; D000368:Aged; D017544:Aortic Aneurysm, Abdominal / Q000000981:diagnostic imaging / Q000517:prevention & control*; D006801:Humans; D008297:Male; D008403:Mass Screening; D014463:Ultrasonography