D. Nežić, M. Miličić, I. Petrović, D. Košević, and S. Mićović, “The operative risk stratification models in cardiac surgery: EuroSCORE II model – risk groups categorization”, Vojnosanit Pregl, vol. 77, no. 6, Apr. 2021, doi: 10.2298/VSP180516124N.