title: Probable existence of four subloci in the HLA-DR (or D) region.
mesh_terms: D002874:Chromosome Mapping; D003434:Crossing Over, Genetic; D005260:Female; D006680:HLA Antigens / Q000235:genetics*; D006650:Histocompatibility Testing; D006720:Homozygote; D006801:Humans; D007106:Immune Sera / Q000494:pharmacology; D007564:Japan; D007959:Lymphocyte Culture Test, Mixed; D008297:Male; D010375:Pedigree; D011995:Recombination, Genetic
chemical_list: D006680:HLA Antigens; D007106:Immune Sera