Almost 30% of anaesthetic machines in UK do not have anti-hypoxia device.
Saunders
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DI
Meek
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D000769:Anesthesia, Inhalation / Q000295:instrumentation*; D004867:Equipment Design; D004869:Equipment Safety / Q000706:statistics & numerical data; D006801:Humans; D000860:Hypoxia / Q000517:prevention & control*; D007431:Intraoperative Complications / Q000517:prevention & control*