The administration of nitrous oxide-oxygen anesthesia in closed systems.
D000758:Anesthesia; D000769:Anesthesia, Inhalation; D000776:Anesthesiology; D006801:Humans; D009609:Nitrous Oxide; D010100:Oxygen
D009609:Nitrous Oxide; D010100:Oxygen
ANESTHESIA, INHALATION; NITROUS OXIDE