Assertion: atrial fibrillation | /r/HasProperty | intermittent
Facets:
Source sentences:
text: Atrial fibrillation can be intermittent (known as paroxysmal), coming and going apparently randomly or when you do certain activities.
text: Atrial fibrillation is also known as intermittent AFib, it happens when the upper chambers of your heart lose their usual rhythm and beat irregularly.