Demirdöğen, E. et al. 2022. Serum Krebs von den Lungen-6: promising biomarker to differentiate CPFE from IPF: Serum KL-6: Discriminate CPFE from IPF. Sarcoidosis, Vasculitis and Diffuse Lung Diseases. 39, 4 (Dec. 2022), e2022035. DOI:https://doi.org/10.36141/svdld.v39i4.11344.