1. DEPARTMENT OF UROLOGY, DR. B. HAGER MULTISPECIALIST COUNTY HOSPITAL IN TARNOWSKIE GORY, TARNOWSKIE GORY, POLAND
2. 3DEPARTMENT OF PATHOPHYSIOLOGY AND ENDOCRINOLOGY, SCHOOL OF MEDICAL SCIENCES IN ZABRZE, MEDICAL UNIVERSITY OF SILESIA IN KATOWICE, KATOWICE, POLAND
3. ACADEMIC CENTER FOR DENTISTRY AND SPECIALIZED MEDICINE, SCHOOL OF MEDICAL SCIENCES IN ZABRZE, MEDICAL UNIVERSITY OF SILESIA IN KATOWICE, KATOWICE, POLAND
4. SCHOOL OF MEDICAL SCIENCES IN ZABRZE, MEDICAL UNIVERSITY OF SILESIA IN KATOWICE, KATOWICE, POLAND