No abstract available
MeSH terms
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Adolescent
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Angiocardiography
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Cardiac Catheterization
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Cardiac Volume
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Child
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Child, Preschool
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Diastole
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Heart Atria / physiopathology*
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Heart Conduction System / physiopathology*
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Heart Septal Defects, Atrial / physiopathology*
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Humans