1. Association of Anaesthetists of Great Britain & Ireland (2012) Checking Anaesthetic Equipment 2012. AAGBI Safety Guideline, London.
2. Royal College of Anaesthetists (2011) PA (A) supervision and limitation of scope of practice (May 2011 revision). London, UK.
3. Devlin HB (1985) Confidential Enquiry into Perioperative Deaths. J R Soc Med 78(8): 698.
4. The Australian Incident Monitoring Study: an analysis of 2000 incident reports;Webb;Anaesth Intensive Care 21(5),1993
5. Keenan RL, Boyan CP (1991) Decreasing frequency of anesthetic cardiac arrests. J. Clin Anesth 3(5): 354-357.