No abstract available
MeSH terms
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Adult
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Cerclage, Cervical*
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Cervical Ripening / physiology
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Cervix Uteri / anatomy & histology
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Cervix Uteri / diagnostic imaging
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Cervix Uteri / drug effects
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Female
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Humans
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Obstetric Labor, Premature / prevention & control
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Practice Guidelines as Topic
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Pregnancy
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Premature Birth / prevention & control*
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Progesterone / therapeutic use*
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Risk Factors
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Ultrasonography