1. Department of Neurology, P.J. Safarik University, Kosice, Slovakia
2. Department of Neurology, University Hospital of L. Pasteur, Kosice, Slovakia
3. 1st Department of Psychiatry, University Hospital of L. Pasteur, Kosice, Slovakia
4. Department of Prion Diseases, Slovak Medical University, Bratislava, Slovakia
5. 1st Department of Psychiatry, University of P. J. Safarik, Kosice, Slovakia