1 Department of Cardiology, Postgraduate Medical School, Grochowski Hospital, Warsaw, Poland. Electronic address: piotr.kulakowskiMD@gmail.com.
2 Department of Cardiology, Medicover Hospital Warsaw, Warsaw, Poland; Cardiac Arrhythmias Department, National Institute of Cardiology, Warsaw, Poland.
3 Department of Cardiology, Medicover Hospital Warsaw, Warsaw, Poland.
4 Department of Cardiology, Postgraduate Medical School, Grochowski Hospital, Warsaw, Poland.
5 Faculty of Medicine, Lazarski University, Warsaw, Poland.
6 Department of Pathology, Faculty of Veterinary Medicine, University of Environmental and Life Sciences, Wroclaw, Poland.
7 Department of Internal Medicine and Clinic of Diseases of Horses, Dogs and Cats, Faculty of Veterinary Medicine, University of Environmental and Life Sciences, Wroclaw, Poland.