Assertion: warfarin's inr | /r/HasProperty | least 2.0
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Source sentences:
text: Although a post hoc on-treatment analysis of the patients assigned to warfarin showed that ischemic stroke, major cardiac events, and major hemorrhages were less likely to occur when the INR was at least 2.0 but not more than 3.0, this narrow therapeutic range is difficult to achieve in clinical practice.