Assertion: pacemaker | /r/HasProperty | implanted in the united states
Facets:
value: between 2002
type: TEMPORAL
value: between 1990
type: TEMPORAL
Source sentences:
text: Most pacemakers implanted in the United States use two leads (attached to two electrodes), while most of the rest use only one.
text: Approximately 2.25 million pacemakers were implanted in the United States between 1990 and 2002, and of those pacemakers, about 8,834 were removed from patients because of device malfunction most commonly connected to generator abnormalities.