No abstract available
MeSH terms
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Abdomen
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Aorta, Thoracic / physiology
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Blood Flow Velocity
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Brain / blood supply
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Brain / embryology*
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Carotid Artery, Internal / physiology
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Cerebral Arteries / physiology
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Cerebrovascular Circulation*
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Female
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Gestational Age
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Heart Rate, Fetal
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Humans
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Pregnancy
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Transducers, Pressure
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Ultrasonography / adverse effects*