No abstract available
MeSH terms
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Aged
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Cardiac Pacing, Artificial / methods*
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England / epidemiology
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Equipment Design
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Europe / epidemiology
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Follow-Up Studies
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Heart Block / epidemiology
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Heart Block / therapy*
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Humans
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Pacemaker, Artificial / statistics & numerical data*
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Prospective Studies
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Registries
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Time Factors