12-lead ECG.

 
 
  Part of: Kitov S, Hristamyan M, Kitova M-F, Aleksiev V, Mihaylova AA, Kitova L (2025) Medical approach to post-COVID-19 high-grade ventricular arrhythmias: a case report. Pharmacia 72: 1-5. https://doi.org/10.3897/pharmacia.72.e161502