[Closed-circuit anesthesia].
D000769:Anesthesia, Inhalation / Q000191:economics / Q000379:methods*; D006801:Humans; D008176:Lung Volume Measurements; D009609:Nitrous Oxide / Q000008:administration & dosage; D010100:Oxygen / Q000032:analysis
D009609:Nitrous Oxide; D010100:Oxygen
Lukket sirkelanestesi.