“Optimization of the System for Predicting the Severity of the Course of COVID-19 in Hospitalizedpatients Based on Cardiovascular History, Initial Clinical Status and Surface ECG Indicators”. Ukrainian Journal of Cardiology, vol. 30, no. 5-6, Dec. 2023, pp. 19-30, https://doi.org/10.31928/2664-4479-2023.5-6.1930.