Ljilja Posavec, Anja, et al. “Prolonged Corticosteroid Therapy and Lung Abnormalities in Patients After Severe COVID-19 Pneumonia”. Sarcoidosis, Vasculitis and Diffuse Lung Diseases, vol. 41, no. 4, Dec. 2024, p. e2024052, https://doi.org/10.36141/svdld.v41i4.14331.