No abstract available
MeSH terms
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Female
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Humans
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Infant, Newborn
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Male
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Placenta / blood supply*
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Pregnancy
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Risk Factors
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Ultrasonography, Doppler, Color* / methods
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Ultrasonography, Interventional
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Ultrasonography, Prenatal*
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Umbilical Arteries / diagnostic imaging*
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Umbilical Veins / diagnostic imaging*