1. Department of Cardiovascular Disease Prevention, Faculty of Public Health, Medical University of Silesia in Katowice, Piekarska 18, 41-902 Bytom, Poland
2. Department of Public Health, Faculty of Public Health in Bytom, Medical University of Silesia in Katowice, Piekarska 18, 41-902 Bytom, Poland
3. Department of Epidemiology, Department of Epidemiology and Biostatistics, Faculty of Public Health in Bytom, Medical University of Silesia in Katowice, Piekarska 18, 41-902 Bytom, Poland
4. Department of Basic Medical Sciences, Faculty of Public Health in Bytom, Medical University of Silesia in Katowice, Piekarska 18, 41-902 Bytom, Poland
5. Department of Eastern Languages and Literature, Cyprus Science University, Casaphani, Cyprus
6. Student Scientific Society at the Department of Neurology, Institute of Medical Sciences, University of Opole, Opole, Poland
7. Department of Neurology, Institute of Medical Sciences, University of Opole, 45-040 Opole, Poland