A new nitrous oxide and oxygen analgesia machine.
D000698:Analgesia; D000758:Anesthesia / Q000600:supply & distribution*; D000760:Anesthesia and Analgesia; D000773:Anesthesia, Obstetrical; D000776:Anesthesiology; D004864:Equipment and Supplies; D006801:Humans; D009609:Nitrous Oxide; D010100:Oxygen / Q000628:therapy*; D010102:Oxygen Inhalation Therapy
D009609:Nitrous Oxide; D010100:Oxygen
ANESTHESIA, OBSTETRICAL; ANESTHESIA/equipment and supplies; NITROUS OXIDE/anesthesia and analgesia; OXYGEN/therapy