Department of Rhythmology, Helios Clinic Köthen, Köthen, Germany; Address for correspondence: Dr. Jedrzej Kosiuk, Department of Rhythmology, Helios Clinic Köthen, Hallesche Strasse 29, 06366 Köthen, Germany.
Dawid Miśkowiec, MD, PhD
Department of Cardiology, Medical University of Lodz, Lodz, Poland
Michał Chudzik, MD, PhD
Department of Cardiology, Medical University of Lodz, Lodz, Poland