YANI, H.; DEWI, S.; RAHMADI, A. R. Correlation between Serum Krebs von den Lungen-6 Levels with Forced Vital Capacity and Modified Rodnan Skin Score of Patients with Restrictive Lung Disease in Diffuse-Type Systemic Sclerosis. Indonesian Journal of Rheumatology, v. 11, n. 2, 19 Dec. 2019.