1. Department of Urology, Division of Medical Sciences in Zabrze, Medical University of Silesia in Katowice, 41-800 Zabrze, Poland
2. Department of Urology, Medical University of Vienna, 1090 Vienna, Austria
3. Department of Biostatistics and Bioinformatics, Maria Skłodowska-Curie National Research Institute of Oncology, Gliwice Branch, 44-100 Gliwice, Poland
4. Department of Biochemistry, Faculty of Medical Sciences in Zabrze, Medical University of Silesia in Katowice, ul. Jordana 19, 41-808 Zabrze, Poland
5. Department of Radiology and Radiodiagnostics, Public Clinical Hospital, Medical University of Silesia in Katowice, ul. 3-go Maja 13-15, 41-800 Zabrze, Poland