1. First Department of Internal Medicine, Univerzita Pavla Jozefa Šafárika v Košiciach, Košice, Slovakia
2. Department of Neurosurgery, Univerzita Pavla Jozefa Šafárika v Košiciach, Košice, Slovakia
3. Department of Neurology, Univerzita Pavla Jozefa Šafárika v Košiciach, Košice, Slovakia