[Problem of anesthesia using air as carrier gas and its countermeasure].
D000328:Adult; D000368:Aged; D000388:Air; D000769:Anesthesia, Inhalation; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010100:Oxygen; D010313:Partial Pressure
D010100:Oxygen