No abstract available
MeSH terms
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Aged
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Atrial Function, Left / physiology*
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Cardiac Output / physiology
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Cardiac Pacing, Artificial / adverse effects*
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Electrocardiography
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Female
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Heart Failure / etiology*
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Humans
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Pacemaker, Artificial / adverse effects*
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Stroke Volume / physiology
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Syndrome
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Time Factors