title: [Measurement of serum IgG subclass concentration in systemic lupus erythematosus].
authors.forename: Z J
authors.initials: ZJ
authors.lastname: Qing
authors.forename: H F
authors.initials: HF
authors.lastname: Li
authors.forename: L X
authors.initials: LX
authors.lastname: Qing
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D001323:Autoantibodies / Q000097:blood; D005260:Female; D006801:Humans; D007074:Immunoglobulin G / Q000097:blood / Q000145:classification*; D008180:Lupus Erythematosus, Systemic / Q000276:immunology*; D008297:Male; D008875:Middle Aged
chemical_list: D001323:Autoantibodies; D007074:Immunoglobulin G