No abstract available
MeSH terms
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Adult
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Aged
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Cardiotonic Agents*
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Dobutamine*
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Echocardiography
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Female
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Humans
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Long QT Syndrome / complications*
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Long QT Syndrome / diagnosis*
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Male
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Middle Aged
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Syncope / diagnosis*
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Syncope / etiology*
Substances
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Cardiotonic Agents
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Dobutamine