1. Division of Neurology, University Medical Centre Maribor, Ljubljanska 5, 2000 Maribor, Slovenia
2. Faculty of Medicine, University of Maribor, Taborska 8, 2000 Maribor, Slovenia
3. Queen Square Multiple Sclerosis Centre, Department of Neuroinflammation, UCL Queen Square Institute of Neurology, Faculty of Brain Sciences, University College London, London WC1B 5EH, UK
4. National Institute for Health Research, University College London Hospitals, Biomedical Research Centre, London W1T 7DN, UK
5. Department of Neurology, Concord Hospital, University of Sydney, Sydney, NSW 2050, Australia
6. Brain & Mind Centre, University of Sydney, Sydney, NSW 2050, Australia