title: Letter: Mo91--an allele at the first HL-A locus.
mesh_terms: D000483:Alleles; D003601:Cytotoxicity Tests, Immunologic; D005838:Genotype; D006649:Histocompatibility Antigens / Q000302:isolation & purification*; D006801:Humans; D007106:Immune Sera; D012703:Serotyping
chemical_list: D006649:Histocompatibility Antigens; D007106:Immune Sera