Assertion: atrial fibrillation | /r/HasProperty | problem
Facets:
value: with rhythm
type: OTHER
Source sentences:
text: Atrial fibrillation is a problem with the electrical system of the heart.
text: To understand why atrial fibrillation is a problem, it is helpful to understand the normal patterns of the heart’s electrical system.
text: Atrial fibrillation (also called AFib) is a problem with the rate or rhythm of the heartbeat.
text: Atrial fibrillation or AF, the most common type of arrhythmia, is a problem with the rate or rhythm of the heartbeat.