Assertion: warfarin | /r/CapableOf | reduce the risk of strokes
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text: Warfarin is used to treat deep vein thrombosis (DVT), to prevent further emboli in patients with pulmonary embolism, to reduce the risk of strokes and after a heart attack in patients with atrial fibrillation or artificial heart valves, to prevent blood clots from forming in certain orthopedic surgeries, and to prevent closure of coronary artery stents due to clotting.