title: Determination of HL-A zygosity by radioimmunoassay.
mesh_terms: D000818:Animals; D002462:Cell Membrane / Q000276:immunology; D000939:Epitopes; D005838:Genotype; D006649:Histocompatibility Antigens; D006650:Histocompatibility Testing; D006801:Humans; D007106:Immune Sera; D008214:Lymphocytes / Q000276:immunology; D011817:Rabbits / Q000276:immunology; D011863:Radioimmunoassay
chemical_list: D000939:Epitopes; D006649:Histocompatibility Antigens; D007106:Immune Sera