Nitrous oxide, trichlorethylene, and ether; a balanced anesthesia in obstetrics.
D000698:Analgesia; D000758:Anesthesia; D000760:Anesthesia and Analgesia; D000769:Anesthesia, Inhalation; D058126:Balanced Anesthesia; D004986:Ether; D005260:Female; D006801:Humans; D007743:Labor, Obstetric; D009609:Nitrous Oxide; D009774:Obstetrics; D011247:Pregnancy
D004986:Ether; D009609:Nitrous Oxide
ANESTHESIA, INHALATION; LABOR/anesthesia and analgesia