The subclavian steal syndrome.
D000368:Aged; D001027:Aortography; D001794:Blood Pressure; D002339:Carotid Arteries / Q000000981:diagnostic imaging; D003097:Collateral Circulation; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D013349:Subclavian Steal Syndrome / Q000000981:diagnostic imaging*; D014711:Vertebral Artery / Q000000981:diagnostic imaging