Assertion: mitral valve prolapse | /r/HasProperty | blamed for lightheadedness
Facets:
value: in the past
type: TEMPORAL
Source sentences:
text: In the past, mitral valve prolapse was blamed for symptoms such as chest pains, palpitations and lightheadedness.
text: Mitral valve prolapse was once blamed for symptoms such as chest pains, palpitations, and lightheadedness.