1. Medical University of Silesia, School of Medicine with the Division of Dentistry, 3rd Department of Cardiology, Silesian Centre for Heart Diseases, Marii Skłodowskiej Curie Street 9, 41-800 Zabrze, Poland
2. Medical University of Silesia, School of Medicine with the Division of Dentistry, Department of Medical and Molecular Biology, Jordana Street 19, 41-808 Zabrze, Poland