title: Positive mixed lymphocyte culture reactivity between HLA-DR-identical siblings.
mesh_terms: D001402:B-Lymphocytes / Q000276:immunology; D002906:Chromosomes, Human, 6-12 and X; D005260:Female; D006680:HLA Antigens / Q000276:immunology*; D006801:Humans; D007959:Lymphocyte Culture Test, Mixed; D008297:Male
chemical_list: D006680:HLA Antigens