Bieda, A., M. Kondracka, M. Bielecki, A. Zapałowska, K. Kondracki, M. Szczepańska, and W. Kozłowski. “The role of vitamin D and its supplementation in sarcoidosis – current status”. European Journal of Clinical and Experimental Medicine, vol. 23, no. 2, June 2025, pp. 482–492, doi:10.15584/ejcem.2025.2.16.