1 | Department of Cardiology, School of Health Sciences in Katowice, Medical University of Silesia, Katowice, Poland |
2 | Students’ Scientific Club, Department of Cardiology, School of Health Sciences in Katowice, Medical University of Silesia, Katowice, Poland |
3 | 2nd Department of Cardiology and Department of Anaesthesiology and Intensive Care, Independent Public
Clinical Hospital No. 7, Leszek Giec Upper-Silesian Medical Centre, Medical University of Silesia, Katowice, Poland |