1. Department of Cardiology and Internal Medicine, School of Medicine, Collegium Medicum, University of Warmia and Mazury in Olsztyn, 10-727 Olsztyn, Poland
2. Department of Cardiology, Regional Specialist Hospital in Olsztyn, 10-045 Olsztyn, Poland
3. Department of Nephrology, Hypertension and Internal Medicine, School of Medicine, Collegium Medicum, University of Warmia and Mazury in Olsztyn, 10-727 Olsztyn, Poland
4. Department of Pharmacodynamics, Medical University of Bialystok, 15-089 Bialystok, Poland
5. Department of Emergency Medicine, School of Medicine, Collegium Medicum, University of Warmia and Mazury in Olsztyn, 10-727 Olsztyn, Poland
6. Clinical Emergency Department, Regional Specialist Hospital in Olsztyn, 10-045 Olsztyn, Poland
7. Clinical Department of Anaesthesiology and Intensive Care, Regional Specialist Hospital in Olsztyn, 10-045 Olsztyn, Poland
8. Branch in Ełk, University of Warmia and Mazury in Olsztyn, 10-727 Olsztyn, Poland
9. Scanmed Cardiology Center in Ełk, 19-300 Ełk, Poland
10. National Medical Institute of the Ministry of Interior and Administration, 02-507 Warsaw, Poland