1 Department of Physiotherapy, School of Health Sciences, The University of Melbourne, Level 7 Alan Gilbert Building, Parkville, Melbourne, VIC, 3010, Australia. [email protected].
2 Nursing Research, University Hospital of Schleswig-Holstein, Kiel, Germany.
3 Outcomes After Critical Illness and Surgery Group, Johns Hopkins University, Baltimore, MD, USA.
4 Division of Pulmonary and Critical Care Medicine, School of Medicine, Johns Hopkins University, Baltimore, MD, USA.
5 Department of Physical Medicine and Rehabilitation, School of Medicine, Johns Hopkins University, Baltimore, MD, USA.