title: Experience with Devices implanted fixed-rate pacemakers.
mesh_terms: D001145:Arrhythmias, Cardiac / Q000209:etiology; D004566:Electrodes; D006801:Humans; D009336:Necrosis; D010138:Pacemaker, Artificial / Q000009:adverse effects / Q000401:mortality; D018805:Sepsis / Q000209:etiology