title: Spinal anesthesia after failed epidural anesthesia.
authors.forename: A
authors.initials: A
authors.lastname: Gupta
mesh_terms: D000767:Anesthesia, Epidural / Q000009:adverse effects* / Q000379:methods*; D000773:Anesthesia, Obstetrical / Q000009:adverse effects* / Q000379:methods*; D000775:Anesthesia, Spinal; D000779:Anesthetics, Local / Q000134:cerebrospinal fluid / Q000493:pharmacokinetics; D004824:Epidural Space / Q000378:metabolism; D005260:Female; D006801:Humans; D011247:Pregnancy
chemical_list: D000779:Anesthetics, Local