1. Dialysis Center in Rybnik, Regional Specialist Hospital No. 3 in Rybnik, Poland
2. Department of Neurology with Stroke Unit, Regional Specialist Hospital No. 3 in Rybnik, Poland
3. Jan Dlugosz University in Czestochowa, Poland
4. Department of Statistics, Department of Instrumental Analysis, Faculty of Pharmacy and Laboratory Medicine in Sosnowiec, Medical University of Silesia, Katowice, Poland
5. Health Promotion and Obesity Management Unit, Department of Pathophysiology, Medical Faculty in Katowice, Medical University of Silesia, Katowice, Poland
6. Pathophysiology Unit, Department of Pathophysiology, Medical Faculty in Katowice, Medical University of Silesia, Katowice, Poland
7. Department of Internal Medicine and Oncological Chemotherapy, Medical Faculty in Katowice, Medical University of Silesia, Katowice, Poland