E. Niewiadomska, M. Kowalska, M. Skrzypek, A. Bocionek, and E. Czech, “Incidence and economic burden of sarcoidosis in years 2011–2015 in Silesian voivodeship, Poland: Sarcoidosis – Poland”, Sarcoidosis Vasc Diffuse Lung Dis, vol. 37, no. 1, pp. 43–52, Mar. 2020, doi: 10.36141/svdld.v37i1.8144.