1. Department of Neurology and Neurosurgery, Institute of Clinical Medicine, University of Tartu, Tartu, Estonia.
2. Department of Neurology, Neurology Clinic, Tartu University Hospital, Tartu, Estonia.
3. Division of Neuropsychopharmacology, Department of Psychology, University of Tartu, Tartu, Estonia.
4. Department of Social Studies, University of Tartu, Tartu, Estonia.
5. Haapsalu Neurological Rehabilitation Centre, Haapsalu, Estonia.