1. Australian and New Zealand Intensive Care Research Centre, Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Victoria, Australia
2. Department of Physiotherapy, Monash Health, Clayton, Victoria, Australia
3. Department of Physiotherapy, The Alfred, Melbourne, Victoria, Australia
4. Department of Physiotherapy, Victoria University, Footscray, Victoria, Australia
5. Intensive Care Unit, Wellington Hospital, Wellington, New Zealand
6. Medical Research Institute of New Zealand, Wellington, New Zealand
7. Department of Critical Care, University of Melbourne, Melbourne, Victoria, Australia
8. The Ian Potter Library, The Alfred, Melbourne, Victoria, Australia
9. Critical Care Division, The George Institute for Global Health, Sydney