No abstract available
Publication types
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English Abstract
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Research Support, Non-U.S. Gov't
MeSH terms
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Amniocentesis / methods*
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Chromosome Aberrations / diagnosis
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Chromosome Disorders
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Congenital Abnormalities / diagnosis*
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Female
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Humans
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Maternal-Child Health Centers
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Metabolism, Inborn Errors / diagnosis
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Neural Tube Defects / diagnosis
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Poland
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Pregnancy
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Urban Population