title: [Preliminary note on epidural analgesia during labor].
mesh_terms: D000293:Adolescent; D000328:Adult; D000767:Anesthesia, Epidural; D000773:Anesthesia, Obstetrical; D005260:Female; D006801:Humans; D011247:Pregnancy
vernacular_title: Nota previa sobre analgesia epidural no trabalho de parto.