Assertion: subclavian artery's side | /r/CapableOf | artery branches off innominate artery
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text: Upper extremity atherosclerotic obstruction is predominantly due to subclavian artery stenosis (SS), although on the right side, where the subclavian artery branches off the innominate artery (as opposed to directly from the aortic arch on the left side), up to a third of the obstructions are actually in the innominate artery (7,8).