title: IgG subclass deficiency in adults: a clinical and immunological study.
mesh_terms: D000328:Adult; D004406:Dysgammaglobulinemia / Q000276:immunology*; D004797:Enzyme-Linked Immunosorbent Assay; D005260:Female; D006801:Humans; D017099:IgG Deficiency; D007074:Immunoglobulin G / Q000145:classification / Q000235:genetics; D008214:Lymphocytes / Q000276:immunology; D008297:Male
chemical_list: D007074:Immunoglobulin G