title: Nomenclature for factors of the HLA-system 1977.
mesh_terms: D001402:B-Lymphocytes / Q000276:immunology; D000939:Epitopes; D006680:HLA Antigens; D006801:Humans; D009626:Terminology as Topic; D014944:World Health Organization
chemical_list: D000939:Epitopes; D006680:HLA Antigens