1. Chair and Clinical Department of General, Colorectal and Trauma Surgery, Medical University of Silesia, Sosnowiec, Poland
2. Department of Propaedeutics Surgery, Chair of General, Colorectal and Polytrauma Surgery, Medical University of Silesia, Katowice, Poland
3. Chair and Clinical Department of General, Colorectal and Trauma Surgery, Medical University of Silesia, Katowice, Poland
4. Department of Molecular Biology, Medical University of Silesia, Katowice, Poland