title: [Contribution to the classic technique of continuous caudal analgesia application. 1946].
authors.forename: J C
authors.initials: JC
authors.lastname: Alvárez
mesh_terms: D015360:Analgesia, Epidural / Q000266:history* / Q000379:methods; D016362:Analgesia, Obstetrical / Q000266:history* / Q000379:methods; D005260:Female; D049673:History, 20th Century; D006801:Humans; D011247:Pregnancy