title: Observations on caudal and intravenous analgesia in obstetrics.
mesh_terms: D000698:Analgesia; D000758:Anesthesia; D000771:Anesthesia, Intravenous; D000773:Anesthesia, Obstetrical; D000775:Anesthesia, Spinal; D000776:Anesthesiology; D006176:Gynecology; D009774:Obstetrics
keywords: ANESTHESIA/in gynecology and obstetrics; ANESTHESIA/intravenous; ANESTHESIA/spinal