Serologic HLA-DR typing is not sufficient for definition of class II compatibility.
D000483:Alleles; D005802:Genes, MHC Class II; D006681:HLA-D Antigens / Q000032:analysis*; D006684:HLA-DR Antigens / Q000032:analysis* / Q000235:genetics; D006650:Histocompatibility Testing / Q000379:methods*; D006801:Humans; D007518:Isoantibodies / Q000276:immunology; D007959:Lymphocyte Culture Test, Mixed; D011110:Polymorphism, Genetic; D012150:Polymorphism, Restriction Fragment Length; D011237:Predictive Value of Tests; D012699:Serology
D006681:HLA-D Antigens; D006684:HLA-DR Antigens; D007518:Isoantibodies