Assertion: mitral valve prolapse's flap | /r/HasProperty | enlarged long
Facets:
Source sentences:
text: The American Heart Association describes mitral valve prolapse as “(when) one or both flaps (of the mitral valve) are enlarged and some of their supporting strings are too long.
text: The American Heart Association describes mitral valve prolapse as (when) one or both flaps (of the mitral valve) are enlarged and some of their supporting strings are too long.