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HAS-BLED tool for assessing risk of bleeding (score of ≥3 indicating high risk of bleeding). *Hypertension defined as systolic pressure ≥ 160 mm Hg. †Labile INR defined as within therapeutic range < 60% of the time. ‡Drugs defined as antiplatelet drugs (eg aspirin, clopidogrel), alcohol ≥ 8 drinks per week.
