1. REVAL Rehabilitation Research Centre, BIOMED Biomedical Research Institute, Faculty of Medicine and Life Sciences, University of Hasselt, Diepenbeek, Belgium
2. Blizard Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University London, London, UK
3. Ismar Healthcare, Lier, Belgium
4. Department of Systems Medicine, University of Rome Tor Vergata, Rome, Italy/IRCCS Neuromed, Pozzilli, Italy
5. National Multiple Sclerosis Centre, Melsbroek, Belgium
6. Glostrup University Hospital, Glostrup, Denmark