Nitrous oxide-oxygen supplementation; a preliminary report.
D000758:Anesthesia; D000769:Anesthesia, Inhalation; D000771:Anesthesia, Intravenous; D006801:Humans; D009609:Nitrous Oxide; D010100:Oxygen
D009609:Nitrous Oxide; D010100:Oxygen
ANESTHESIA, INHALATION; ANESTHESIA, INTRAVENOUS