1. Faculty of Medicine Vilnius University Vilnius Lithuania
2. Department of Neurology and Neurosurgery University of Tartu Tartu Estonia
3. Department of Neurology and Neurosurgery Riga East Clinical University Hospital Riga Latvia
4. Department of Infectology Riga Stradiņš University Riga Latvia
5. Clinic of Neurology and Neurosurgery Vilnius University Vilnius Lithuania
6. Department of Neurology Lithuanian University of Health Sciences Kaunas Lithuania