title: Letter: Epidural analgesia.
mesh_terms: D000698:Analgesia / Q000009:adverse effects*; D000767:Anesthesia, Epidural / Q000009:adverse effects*; D000773:Anesthesia, Obstetrical / Q000009:adverse effects*; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D011247:Pregnancy