No abstract available
MeSH terms
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Anti-Arrhythmia Agents / therapeutic use*
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Electrocardiography
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Female
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Heart Conduction System / surgery*
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Humans
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Middle Aged
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Pacemaker, Artificial*
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Propranolol / therapeutic use
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Sympathectomy*
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Tachycardia, Paroxysmal / therapy*
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Ventricular Fibrillation / therapy*
Substances
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Anti-Arrhythmia Agents
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Propranolol