[Automatic inhaler for mixed nitrous oxide-oxygen anesthesia controlled by the patient in alleviation of labor pains].
PLOTZ
J
J
D000758:Anesthesia; D000776:Anesthesiology; D005260:Female; D006801:Humans; D048949:Labor Pain; D007743:Labor, Obstetric; D009330:Nebulizers and Vaporizers; D009609:Nitrous Oxide; D010100:Oxygen; D011247:Pregnancy
D009609:Nitrous Oxide; D010100:Oxygen