Assertion: aortic stenosis's symptom | /r/CapableOf | develop in asymptomatic adults
Facets:
value: with severe as
type: OTHER
value: insidiously
type: MANNER
value: often
type: TEMPORAL
Source sentences:
text: In initially asymptomatic adults with severe AS, symptoms often develop insidiously and may not be recognized by the patient until late in the disease course.