Kuliesh IO, Riabokon OV, Kalashnyk KV. Predictive value of the Elixhauser comorbidity index in assessing the risk of coronavirus disease (COVID-19) mortality in patients with pneumonia. Zaporozhye Medical Journal [Internet]. 2025Feb.17 [cited 2025Feb.22];27(1):25-30. Available from: http://zmj.zsmu.edu.ua/article/view/317977