Assertion: atrial fibrillation's heart rhythm | /r/HasProperty | observed
Facets:
Source sentences:
text: It may occur any number of times during the day and be over without any assistance, and between attacks a normal heart rhythm is observed;
text: It may occur any number of times during the day and be over without any assistance, and between attacks a normal heart rhythm is observed; Persistent form – in this case arrhythmia cannot disappear without any interference.