No abstract available
MeSH terms
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Aged, 80 and over
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Cardiac Pacing, Artificial / adverse effects*
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Electrocardiography
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Electrodes, Implanted / adverse effects
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Humans
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Male
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Pacemaker, Artificial / adverse effects*
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Tachycardia, Ventricular / etiology
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Ventricular Fibrillation / etiology