1. National Trauma Research Institute, The Alfred Hospital, Melbourne, Australia.
2. Departments of Surgery, Monash University, Melbourne, Australia.
3. Department of Neurosurgery, The Alfred Hospital, Melbourne, Australia.
4. Epidemiology and Preventive Medicine, Monash University, Melbourne, Australia.
5. Australian New Zealand Intensive Care Research Centre, Melbourne, Australia.
6. Department of Neurosurgery, University Hospital Antwerp, Belgium.
7. Barrow Neurological Institute, Department of Child Health, University of Arizona, Phoenix, Arizona.