1 Department of Cardiology, Provincial Specialized Hospital, Legnica, Poland.
2 Department of Cardiology, Provincial Specialized Hospital, Legnica, Poland. piotr.rola@gmail.com.
3 Faculty of Health Sciences and Physical Culture, Witelon Collegium State University, Legnica, Poland. piotr.rola@gmail.com.
4 Department of Cardiology, The Copper Health Centre (MCZ), Lubin, Poland.
5 Department of Cardiology, Center for Heart Diseases, 4th Military Hospital, Faculty of Medicine, Wroclaw University of Science and Technology, Wrocław, Poland.
6 1st Department of Cardiology, Poznan University of Medical Sciences, Poznań, Poland.