title: [Postoperative caudal analgesia with morphine in pediatric surgery].
mesh_terms: D000698:Analgesia; D002648:Child; D002675:Child, Preschool; D006801:Humans; D007268:Injections, Epidural; D009020:Morphine
chemical_list: D009020:Morphine
vernacular_title: Analgesia caudal postoperatoria con morfina en cirugía pediátrica.