1. Radboud University Medical Centre; Donders Institute for Brain, Cognition and Behaviour, Department of Neurology; Nijmegen the Netherlands
2. Department of Neurology; Centro Hospitalar e Universitário de Coimbra; Coimbra Portugal
3. Department of Clinical Neurosciences, Psychiatry, Pediatrics and Community Health Sciences; University of Calgary; Calgary Alberta
4. Radboud University Medical Centre, Department of Health Evidence; Nijmegen the Netherlands