title: HLA antigen frequencies in systemic vasculitis: increase in HLA-DR2 in Wegener's granulomatosis.
mesh_terms: D014890:Granulomatosis with Polyangiitis / Q000276:immunology*; D006684:HLA-DR Antigens; D000949:Histocompatibility Antigens Class II / Q000032:analysis*; D006650:Histocompatibility Testing; D006801:Humans; D010488:Polyarteritis Nodosa / Q000276:immunology; D018366:Vasculitis, Leukocytoclastic, Cutaneous / Q000276:immunology
chemical_list: D006684:HLA-DR Antigens; D000949:Histocompatibility Antigens Class II