1John V Farman Intensive Care Unit, Addenbrooke’s Hospital, Cambridge, UK
2Department of Anaesthesiology and Perioperative Medicine, Alfred Hospital, Melbourne, Australia
3Department of Anaesthesiology and Perioperative Medicine, Monash University, Melbourne, Australia
Christine M Ball, Alfred Hospital, Department of Anaesthesiology and Perioperative Medicine, 55 Commercial Road, Prahran 3181, Victoria, Australia. Email: [email protected]