No abstract available
MeSH terms
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Animals
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Echocardiography / methods*
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Echocardiography, Transesophageal / methods
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Heart Ventricles / diagnostic imaging
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Humans
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Models, Animal
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Models, Cardiovascular
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Posture
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Stroke Volume / physiology
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Swine
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Ventricular Function
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Ventricular Function, Left / physiology