title: [Clinical observations on C3 and CH50 in the serum of patients with systemic lupus erythematosus].
mesh_terms: D001323:Autoantibodies / Q000032:analysis; D003176:Complement C3 / Q000032:analysis*; D003165:Complement System Proteins / Q000032:analysis*; D004247:DNA / Q000276:immunology; D006801:Humans; D008180:Lupus Erythematosus, Systemic / Q000276:immunology*
chemical_list: D001323:Autoantibodies; D003176:Complement C3; D003165:Complement System Proteins; D004247:DNA