Entonox hazard.
D000769:Anesthesia, Inhalation / Q000295:instrumentation*; D004338:Drug Combinations / Q000008:administration & dosage; D004868:Equipment Failure; D004869:Equipment Safety; D006801:Humans; D009609:Nitrous Oxide / Q000008:administration & dosage*; D010100:Oxygen / Q000008:administration & dosage*
D004338:Drug Combinations; C001147:Entonox; D009609:Nitrous Oxide; D010100:Oxygen