Assertion: atrial fibrillation's symptom | /r/CapableOf | report sensation
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Source sentences:
text: Atrial Fibrillation (AF) symptoms vary on the functional state of the heart, the location of the fibrillation, and may exist without symptoms.,6 Individuals are usually aware of the irregular heart action and may report feeling palpitations or sensations of fluttering, skipping and pounding.