title: Nomenclature for factors of the HLA system, 1991. The WHO Nomenclature Committee for factors of the HLA system.
mesh_terms: D000483:Alleles; D001483:Base Sequence; D005805:Genes, MHC Class I; D005802:Genes, MHC Class II; D006680:HLA Antigens / Q000235:genetics*; D006801:Humans; D008285:Major Histocompatibility Complex; D008969:Molecular Sequence Data; D009626:Terminology as Topic
chemical_list: D006680:HLA Antigens