1. 2nd Department of Internal Medicine, Faculty of Medicine, University Hospital of Louis Pasteur, Pavol Jozef Šafárik University, 04001 Košice, Slovakia
2. 1st Department of Internal Medicine, Faculty of Medicine, University Hospital of Louis Pasteur, Pavol Jozef Šafárik University, 04001 Košice, Slovakia
3. Department of Neurology, Faculty of Medicine, Pavol Jozef Šafárik University, 04001 Košice, Slovakia
4. Department of Neurology, University Hospital of Louis Pasteur, 04001 Košice, Slovakia
5. Department of Clinical Neurosciences, University Scientific Park MEDIPARK, Pavol Jozef Šafárik University, 04001 Košice, Slovakia