Association between serum immunoglobulin G4 levels and Graves’ ophthalmopathy: a meta-analysis
Objective Graves’ ophthalmopathy (GO) is a severe extrathyroidal manifestation of Graves’ disease (GD) lacking simple and specific biomarkers. Immunoglobulin G4 (IgG4) has attracted increasing attention in autoimmune and fibrotic diseases. This study systematically evaluates the association of serum IgG4 levels with GO...