1 Department of Anaesthesia and Perioperative Medicine, Sunshine Coast Hospital and Health Service, Birtinya, QLD, Australia. Electronic address: lw844@uowmail.edu.au.
2 Department of Intensive Care Medicine, Sunshine Coast Hospital and Health Service, Birtinya, QLD, Australia.
3 Department of Anaesthesia and Perioperative Medicine, Sunshine Coast Hospital and Health Service, Birtinya, QLD, Australia.