Assertion: valvular atrial fibrillation | /r/HasProperty | doac
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Source sentences:
text: For those with non-valvular atrial fibrillation, DOACs (rivaroxaban, dabigatran, apixaban) are at least as effective as warfarin for preventing strokes and blood clots embolizing to the systemic circulation (if not more so) and are generally preferred over warfarin.