1 Department of Anaesthesia, Concord Repatriation General Hospital, Sydney, NSW, Australia; Department of Anaesthesia, Auburn Hospital, Sydney, NSW, Australia; Department of Anaesthesia, Westmead Hospital, Sydney, NSW, Australia. Electronic address: [email protected].
2 Department of Anaesthesia, Auburn Hospital, Sydney, NSW, Australia.
3 Department of Anaesthesia, Auburn Hospital, Sydney, NSW, Australia; Department of Anaesthesia, Westmead Hospital, Sydney, NSW, Australia.
4 Department of Anaesthesia, Auburn Hospital, Sydney, NSW, Australia; School of Medicine, University of Notre Dame, Sydney, NSW, Australia.