title: Pharmacology of obstetrical analgesia.
authors.forename: G A
authors.initials: GA
authors.lastname: EMERSON
mesh_terms: D016362:Analgesia, Obstetrical; D000758:Anesthesia; D000773:Anesthesia, Obstetrical; D000776:Anesthesiology; D005260:Female; D006176:Gynecology; D006801:Humans; D009774:Obstetrics; D011247:Pregnancy