1. Department of Physiotherapy, Inselspital, Bern University Hospital, Bern, Switzerland
2. Department of Epidemiology, Research Line Functioning, Participation and Rehabilitation CAPHRI, Maastricht University, Maastricht, The Netherlands
3. Physiotherapy, Swiss Paraplegic Centre, Nottwil, Switzerland
4. Department of Intensive Care Medicine, Inselspital, Bern University Hospital, University of Bern, Switzerland