No abstract available
Publication types
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Comparative Study
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Meta-Analysis
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Research Support, Non-U.S. Gov't
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Review
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Systematic Review
MeSH terms
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Analgesia, Epidural / methods*
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Analgesia, Obstetrical / methods*
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Delivery, Obstetric / methods*
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Female
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Humans
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Labor Stage, First
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Obstetric Labor Complications / prevention & control*
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Pain / prevention & control*
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Pregnancy
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Pregnancy Outcome
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Randomized Controlled Trials as Topic
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Time Factors