1 1st Department of Cardiology, School of Medicine in Katowice, Medical University of Silesia, Katowice, Poland.
2 3rd Department of Cardiology, School of Medical Sciences in Zabrze, Medical University of Silesia, Katowice, Poland.
3 Department of Cardiology, Congenital Heart Disease and Electrotherapy, Silesian Medical University, Silesian Center for Heart Diseases, Zabrze, Poland.
4 Division of Cardiology and Structural Heart Diseases, Medical University of Silesia, Katowice, Poland.
5 Department of Electrocardiology and Heart Failure, Medical University of Silesia, Katowice, Poland.
6 National Institute of Cardiology, Warszawa, Poland.
7 Department of Interventional Cardiology and Angiology, National Institute of Cardiology, Warszawa, Poland.
8 Department of Cardiology, Centre for Heart Diseases, 4th Military Hospital, Wrocław, Poland.
9 Clinical Department of Cardiology, Faculty of Medicine, Wroclaw University of Science and Technology, Wrocław, Poland.