An extradural service in a district general hospital.
D000767:Anesthesia, Epidural / Q000009:adverse effects; D000773:Anesthesia, Obstetrical; D004739:England; D005260:Female; D006767:Hospitals, District; D006779:Hospitals, Public; D006801:Humans; D007022:Hypotension / Q000209:etiology; D011247:Pregnancy