| http://www.w3.org/ns/prov#value | - About half the patients simply took aspirin and other medicines to lower blood pressure and cholesterol and prevent clots; the other half did the same and also underwent a procedure known as an angioplasty, which involves snaking a tiny balloon to the blocked area, inflating it to reopen the artery and leaving a tiny metal lattice tube known as a stent behind to keep the passageway open.
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