Fig. 2From: Association of serum levels of fibrosis-related biomarkers with disease activity in patients with IgG4-related diseaseChanges of serum immunoglobulin G4 (IgG4) and GDF-15 concentrations after glucocorticoid treatment in 13 patients with IgG4-related disease. Abbreviation: GDF-15 growth differentiation factor 15Back to article page