[Labor anesthesia with nitrous oxide].
D000698:Analgesia; D000758:Anesthesia; D000760:Anesthesia and Analgesia; D005260:Female; D006801:Humans; D007743:Labor, Obstetric; D009609:Nitrous Oxide; D011247:Pregnancy
D009609:Nitrous Oxide
LABOR/anesthesia and analgesia; NITROUS OXIDE/anesthesia and analgesia
Obezbolivanie rodov zakis'iu azota.