1. Intensive Care Unit Liverpool Hospital, South Western Sydney Local Health District Liverpool BC New South Wales Australia
2. Faculty of Medicine The University of New South Wales Sydney New South Wales Australia
3. Faculty of Medicine and Health Sciences Macquarie University Sydney New South Wales Australia
4. Department of Anaesthesiology, Intensive Care and Pain Medicine University of Helsinki and Helsinki University Hospital Helsinki Finland
5. Intensive Care Unit John Hunter Hospital NewcastleNew South Wales Australia
6. Department NSW of Anaesthesiology and Intensive Care University of Eastern Finland and Kuopio University Hospital Kuopio Finland
7. Clinical Neurophysiology HUS Medical Imaging Center, University of Helsinki and Helsinki University Hospital Helsinki Finland
8. Department of Emergency Care and Services University of Helsinki and Helsinki University Hospital Helsinki Finland