| http://www.w3.org/ns/prov#value | - As described in commonly assigned U.S. Pat. No. 5,320,643, incorporated herein by reference, a cardiac pacemaker is an electrical device used to supplant some or all of an abnormal heart's natural pacing function by delivering appropriately timed electrical stimulation signals designed to cause the myocardium of the heart to contract or beat, i.e. to capture the heart.
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