No abstract available
MeSH terms
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Adult
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Analgesia, Obstetrical / methods*
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Female
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Hospitals, Maternity
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Humans
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Nitrous Oxide / administration & dosage*
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Pain Management / methods
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Pain Measurement*
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Patient Safety
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Patient Satisfaction / statistics & numerical data
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Practice Guidelines as Topic*
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Pregnancy
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Quality of Health Care
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United States