title: Increased frequency of HLA-DRw3 in systemic lupus erythematosus.
mesh_terms: D006680:HLA Antigens / Q000032:analysis*; D006801:Humans; D008180:Lupus Erythematosus, Systemic / Q000235:genetics / Q000276:immunology*
chemical_list: D006680:HLA Antigens