title: Blood group specific components and systems in multiple sclerosis. Preliminary report.
mesh_terms: D001789:Blood Group Antigens; D006649:Histocompatibility Antigens / Q000032:analysis; D006801:Humans; D009103:Multiple Sclerosis / Q000235:genetics* / Q000276:immunology; D011044:Poland
chemical_list: D001789:Blood Group Antigens; D006649:Histocompatibility Antigens