1. Department of Anaesthesia and Perioperative Medicine, Royal Brisbane and Women’s Hospital, Brisbane, Australia
2. Faculty of Medicine, The University of Queensland, Brisbane, Australia
3. Australian and New Zealand Tripartite Anaesthetic Data Committee, Melbourne, Australia
4. Department of Anaesthesia, The Royal Women’s Hospital, Melbourne, Australia
5. Faculty of Health, Deakin University, Geelong, Australia
6. Departments of Critical Care, Obstetrics and Gynaecology, and Pharmacology, University of Melbourne, Melbourne, Australia