title: Letter: HL-A antigens in multiple sclerosis.
mesh_terms: D000939:Epitopes; D006649:Histocompatibility Antigens / Q000302:isolation & purification*; D006801:Humans; D009103:Multiple Sclerosis / Q000276:immunology*
chemical_list: D000939:Epitopes; D006649:Histocompatibility Antigens