[A study on the safety of anesthetic machines (2)--Examination of the oxygen supply circuit].
D000764:Anesthesia, Closed-Circuit; D000769:Anesthesia, Inhalation; D000776:Anesthesiology / Q000295:instrumentation* / Q000592:standards; D004869:Equipment Safety; D009609:Nitrous Oxide; D010100:Oxygen
D009609:Nitrous Oxide; D010100:Oxygen