Assertion: pacemaker's lead | /r/CapableOf | extend to the heart
Facets:
Source sentences:
text: Pacemakers, comprising a small battery powered generator implanted under the skin and one or more leads that extend to the heart, are most commonly used to treat abnormally slow heart rhythms.
text: The pacemaker generator implanted in the left subpectoral region was present along with the leads, which appeared to extend into the heart.