Assertion: pacemaker | /r/HasProperty | device
Facets:
Source sentences:
text: A pacemaker is a device that sends small electrical impulses to the heart muscle to maintain a suitable heart rate or to stimulate the lower chambers of the heart (ventricles).
text: Pacemakers that do this are called cardiac resynchronization therapy (biventricular pacemaker) devices.
text: A pacemaker is a device that sends small electrical impulses to the heart muscle to maintain a suitable heart rate or to stimulate the lower chambers of the heart (ventricles).