1. Department of Neurology, Radboud University Medical Center, Donders Institute for Brain, Cognition and Behavior, Nijmegen, The Netherlands
2. Department Care Purchasing, CZ Groep, Goes, The Netherlands
3. Departments of Neurology and of Biostatistics, Epidemiology and Informatics, University of Pennsylvania School of Medicine, Philadelphia, PA, USA
4. Discipline of Physiotherapy, Faculty of Health Sciences, University of Sydney, Sydney, Australia
5. Department of Clinical Neurosciences, John van Geest Centre for Brain Repair, University of Cambridge, UK