1 Unit of Neuroepidemiology, Foundation IRCCS Neurological Institute C. Besta/Department of Psychology, University of Turin, Italy
2 Institute of Social Medicine and Epidemiology, University of Lübeck, Germany
3 FARO Charitable Foundation, Italy
4 Institut für Neuroimmunologie und Multiple Sklerose (INIMS), Universitätsklinikum Hamburg-Eppendorf, Germany
5 Kempfenhausen Centre for Treatment of Multiple Sclerosis, Marianne-Strauß-Klinik, Germany
6 Unit of Neuroepidemiology, Foundation IRCCS Neurological Institute C. Besta, Italy
7 Department of Life Sciences, University of Siena, Italy
8 Clinic of Neurology, CSS, Faculty of Medicine, University Hospital of Belgrade, Serbia
9 Nieuw Unicum, Netherlands
10 MS Centre of Catalonia (Cemcat), University Hospital Vall d'Hebron, Spain
11 Neurology Clinic, Medical University of Sofia, Bulgaria
12 Department of Neurology, Barzilai Medical Center, Israel
13 Neurology Clinic, Multiple Sclerosis Centre, University Hospital Policlinico Vittorio Emanuele, Italy
14 Institute of Epidemiology, Faculty of Medicine, University of Belgrade, Serbia
15 Israel Multiple Sclerosis Society,, Israel
16 Department of Palliative Medicine, University Hospital Cologne, Germany
17 Multiple Sclerosis International Federation, People with MS Advisory Committee, Denmark
18 The Tizard Centre, University of Kent, United Kingdom