1 Department of Anesthesia, The Queen Elizabeth Hospital, Woodville, South Australia, Australia, Department of Acute Care Medicine, University of Adelaide, Adelaide, South Australia, Australia, venkatesan.thiruvenkatarajan@sa.gov.au.
2 Department of Anesthesia, Toronto Western Hospital, University of Toronto, Toronto, Ontario, Canada.
3 Department of Anaesthesiology, Singapore General Hospital, Singapore.
4 Department of Anesthesia, The Queen Elizabeth Hospital, Woodville, South Australia, Australia.
5 Department of Anesthesiology and Perioperative Medicine, Penn State Medical Center, Penn State College of Medicine, Hershey, Pennsylvania.
6 Department of Anesthesia, The Queen Elizabeth Hospital, Woodville, South Australia, Australia, Department of Acute Care Medicine, University of Adelaide, Adelaide, South Australia, Australia.