1. Department of Cardiology, Agel Hospital Trinec-Podlesi, 739 61 Trinec, Czech Republic
2. Poliklinika Agel Ostrava, Dopravni Zdravotnictvi, 728 06 Moravian Ostrava, Czech Republic
3. Faculty of Medicine, Palacky University, 779 00 Olomouc, Czech Republic
4. Faculty of Medicine, Masaryk University, 625 00 Brno, Czech Republic
5. Agel Hospital Ostrava Vitkovice, 703 00 Ostrava-Vítkovice, Czech Republic
6. Philosophical Faculty, Masaryk University, 602 00 Brno, Czech Republic
7. Faculty of Electrical Engineering and Computer Science, VSB-Technical University of Ostrava, 708 33 Ostrava, Czech Republic