No abstract available
MeSH terms
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Adult
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Anesthesia, Obstetrical / adverse effects*
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Anesthesia, Obstetrical / instrumentation
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Anesthesia, Spinal / adverse effects*
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Anesthesia, Spinal / instrumentation
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Female
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Headache / epidemiology
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Headache / etiology*
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Humans
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Incidence
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Male
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Needles*
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Orthopedics*