1. Department of Anaesthesia and Perioperative Medicine, North Shore Hospital, Auckland, New Zealand
2. Department of Anaesthesiology, University of Auckland, Auckland, New Zealand
3. Department of Anaesthesia and Pain Management, Royal Melbourne Hospital, Melbourne, Australia
4. Department of Critical Care, University of Melbourne, Melbourne, Australia
5. Department of Anaesthesia and Pain Medicine, Waikato Hospital, Hamilton, New Zealand
6. Department of Anaesthetics, Royal Prince Alfred Hospital, Sydney, Australia
7. The University of Sydney School of Medicine, Sydney, Australia
8. Department of Anaesthesia, Royal Women’s Hospital, Melbourne, Australia
9. Australian and New Zealand College of Anaesthetists, Melbourne, Australia
10. Department of Anaesthesia, Pain and Perioperative Medicine, Counties Manukau Health, Auckland, New Zealand