No abstract available
MeSH terms
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Acetaminophen / therapeutic use
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Anesthesia, Obstetrical
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Anesthetics, Local
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Aspirin / therapeutic use
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Codeine / therapeutic use
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Conditioning, Psychological
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Exercise Therapy
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Female
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Glutethimide / therapeutic use
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Humans
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Infant, Newborn
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Labor, Obstetric*
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Meperidine / therapeutic use
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Morphine / therapeutic use
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Natural Childbirth*
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Nitrous Oxide
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Obstetric Labor Complications / epidemiology
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Papaverine / therapeutic use
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Paraldehyde / therapeutic use
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Pentobarbital / therapeutic use
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Perineum
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Phenobarbital / therapeutic use
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Physical Examination
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Pregnancy
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Promazine / therapeutic use
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Psychophysiology*
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Psychotherapy
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Relaxation
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Statistics as Topic
Substances
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Anesthetics, Local
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Acetaminophen
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Morphine
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Meperidine
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Glutethimide
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Papaverine
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Pentobarbital
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Nitrous Oxide
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Promazine
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Aspirin
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Paraldehyde
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Codeine
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Phenobarbital