No abstract available
MeSH terms
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Cerclage, Cervical
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Cervical Length Measurement / methods
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Female
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Humans
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Pregnancy
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Premature Birth* / diagnosis
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Premature Birth* / etiology
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Premature Birth* / prevention & control
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Progesterone / therapeutic use
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Progestins / therapeutic use
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Recurrence
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Risk Assessment
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Risk Factors