No abstract available
MeSH terms
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Aged
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Arrhythmias, Cardiac / chemically induced
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Cardiotonic Agents / blood
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Cardiotonic Agents / poisoning*
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Digitoxin / blood
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Digitoxin / poisoning*
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Electrocardiography
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Humans
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Male
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Pacemaker, Artificial
Substances
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Cardiotonic Agents
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Digitoxin