1. Department of Neurology; Collegium Medicum; Jagiellonian University; Krakow Poland
2. Department of Medicine; New York University Langone Medical Center; New York NY USA
3. Department of Pathology; Faculty of Medical Science; University of Warmia and Mazury; Olsztyn Poland
4. Department of Oncology; University Hospital; Jagiellonian University; Krakow Poland