Lang G.F. department of Internal Medicine;
Pavlov First Saint Petersburg State Medical University;
Saint-Petersburg;
Russia;
Almazov National Medical Research Centre;
Saint-Petersburg;
Russia;
Department of Medical and Biotechnology Systems;
First Electrotechnical University;
Saint-Petersburg;
Russia;
Arrhythmias; Electrocardiogram; Supraventricular; Tachycardia; Ventricular;