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  1. 1

    Cohen PJ. Hyperbaric pressure does not affect the analgesia produced by nitrous oxide in the mouse. Can J Anaesth 1989; 36: 40–3.

  2. 2

    Halsey MJ, Wardley-Smith B, Green CJ. Pressure reversal of general anaesthesia: a multi-site expansion hypothesis. Br J Anaesth 1978; 50: 1091–7.

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Cohen, P.J. Reply. Can J Anaesth 36, 735 (1989). https://doi.org/10.1007/BF03005442

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  • Nitrous Oxide
  • Opioid System
  • Anaesthetic Action
  • Altered Consciousness
  • Endogenous Opioid System