1. Radboud University Nijmegen Medical Centre; Nijmegen Centre for Evidence Based Practice; Department of Neurology; Nijmegen; The Netherlands
2. Radboud University Nijmegen Medical Centre; Donders Institute for Brain, Cognition and Behavior; Department of Neurology; Nijmegen; The Netherlands
3. Radboud University Nijmegen Medical Centre; Department of Epidemiology; Biostatistics and HTA; Nijmegen; The Netherlands
4. University of Toronto; Division of Neurology; Department of Medicine; Toronto; Ontario; Canada