No abstract available
MeSH terms
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Biomarkers / analysis
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Cervix Uteri / diagnostic imaging*
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Female
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Gestational Age
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Humans
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Infant, Newborn
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Mass Screening / methods*
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Obstetric Labor, Premature / diagnostic imaging*
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Predictive Value of Tests
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Pregnancy
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Sensitivity and Specificity
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Ultrasonography, Prenatal / methods
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Vagina