No abstract available
MeSH terms
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Aged, 80 and over
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Diagnosis, Differential
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Electrocardiography / methods*
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Equipment Failure Analysis / methods*
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Equipment Failure*
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Humans
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Male
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Pacemaker, Artificial*
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Tachycardia, Ventricular / diagnosis*
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Tachycardia, Ventricular / prevention & control*