No abstract available
MeSH terms
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Alphaprodine*
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Analgesics*
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Analgesics, Non-Narcotic / therapy*
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Anesthesia*
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Anesthesia, Obstetrical*
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Antipyretics*
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Female
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Humans
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Labor, Obstetric*
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Levallorphan*
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Morphine / antagonists & inhibitors*
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Pregnancy
Substances
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Analgesics
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Analgesics, Non-Narcotic
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Antipyretics
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Alphaprodine
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Levallorphan
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Morphine