1. Department of Neurology, P. J. Safarik University, Kosice, Slovak Republic
2. Department of Neurology, L. Pasteur University Hospital, Kosice, Slovak Republic
3. Department of Clinical Neurosciences, University Scientific Park MEDIPARK, P. J. Safarik University, Kosice, Slovak Republic
4. Institute of Clinical Molecular Biology, Kiel University and University Medical Center Schleswig-Holstein, Kiel, Germany
5. Department of Neurology, Kiel University and University Medical Center Schleswig-Holstein, Kiel, Germany