Spinal anaesthesia in obstetrics.
Brownridge
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D000767:Anesthesia, Epidural / Q000009:adverse effects; D000773:Anesthesia, Obstetrical / Q000009:adverse effects; D000775:Anesthesia, Spinal / Q000009:adverse effects; D005260:Female; D006261:Headache / Q000517:prevention & control; D006801:Humans; D011247:Pregnancy