Młodożeniec, Aleksandra, Renata Orłowska-Florek, Adrianna Czarnożycka-Wróbel, Krzysztof Gargasz, and Agnieszka Gala-Błądzińska. 2022. “Nonthyroidal Illness Syndrome As Independent Predictor of Hospital Mortality in the Elderly Hospitalized Patients With COVID-19 Pneumonia – Single-Center Observation”. European Journal of Clinical and Experimental Medicine 20 (3):348–354. https://doi.org/10.15584/ejcem.2022.3.14.