Efficiency of three nitrous oxide relative analgesia scavenging systems.
D000328:Adult; D000397:Air Pollution / Q000517:prevention & control; D000766:Anesthesia, Dental / Q000295:instrumentation*; D000769:Anesthesia, Inhalation / Q000295:instrumentation*; D006801:Humans; D009609:Nitrous Oxide
D009609:Nitrous Oxide