No abstract available
MeSH terms
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Amniocentesis / adverse effects
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Amniocentesis / methods
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Biopsy / methods
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Chorion / pathology
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Congenital Abnormalities / diagnosis
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Evaluation Studies as Topic
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Female
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Fetoscopy / methods
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Gestational Age
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Humans
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Pregnancy
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Prenatal Diagnosis*
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Ultrasonography*