No abstract available
MeSH terms
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Adult
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Aged
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Arrhythmia, Sinus / complications
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Atrial Flutter / diagnosis*
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Atrial Flutter / etiology
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Cardiac Pacing, Artificial*
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Electrocardiography*
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Female
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Humans
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Male
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Middle Aged
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Sick Sinus Syndrome / complications
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Sick Sinus Syndrome / physiopathology
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Sinoatrial Block / complications
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Syncope / etiology