title: Letter: HL-A antigens in polymyalgia rheumatica.
mesh_terms: D006680:HLA Antigens / Q000032:analysis*; D006649:Histocompatibility Antigens / Q000032:analysis*; D006801:Humans; D011111:Polymyalgia Rheumatica / Q000276:immunology*
chemical_list: D006680:HLA Antigens; D006649:Histocompatibility Antigens