1 3rd Department of Cardiology, Silesian Center for Heart Diseases, Faculty of Medical Sciences in Zabrze, Medical University of Silesia, Zabrze, Poland
2 Department of Infectious Diseases and Hepatology, Faculty of Medical Sciences in Zabrze, Medical University of Silesia, Zabrze, Poland
3 1st Department of Cardiology, Faculty of Medical Sciences in Katowice, Medical University of Silesia, Katowice, Poland
4 Department of Science and New Technologies, Silesian Center for Heart Diseases, Zabrze, Poland
5 3rd Department of Cardiology, Silesian Center for Heart Diseases, Faculty of Medical Sciences in Zabrze, Medical University of Silesia, Zabrze, Poland; Division of Cardiovascular Disease Prevention, Department of Metabolic Disease Prevention, Faculty of Health Sciences in Bytom, Medical University of Silesia, Bytom, Poland. bartekh@mp.pl