1. Department of General and Bariatric Surgery and Emergency Medicine, School of Medicine, Division of Dentistry, Zabrze, Medical University of Silesia, Katowice, Poland
2. Department of Microbiology and Immunology, School of Medicine, Division of Dentistry, Zabrze, Medical University of Silesia, Katowice, Poland
3. Third Department of Cardiology, Silesian Centre for Heart Disease, Zabrze, Poland