No abstract available
MeSH terms
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Abnormalities, Severe Teratoid / pathology*
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Anencephaly / pathology
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Embryo, Mammalian
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Female
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Fetus
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Heart Defects, Congenital / epidemiology
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Heart Defects, Congenital / etiology
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Heart Defects, Congenital / pathology*
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Humans
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Nutrition Disorders
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Oxygen
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Pregnancy