title: Letter: HL-A and idiopathic optic neuritis.
mesh_terms: D000939:Epitopes; D006680:HLA Antigens; D006649:Histocompatibility Antigens; D006650:Histocompatibility Testing; D006801:Humans; D007959:Lymphocyte Culture Test, Mixed; D009103:Multiple Sclerosis / Q000209:etiology / Q000276:immunology; D009902:Optic Neuritis / Q000209:etiology / Q000276:immunology*
chemical_list: D000939:Epitopes; D006680:HLA Antigens; D006649:Histocompatibility Antigens