title: Serologic and genetic aspects of HLA-DR antigen study.
mesh_terms: D000373:Agglutinins; D001402:B-Lymphocytes / Q000276:immunology*; D003165:Complement System Proteins; D003602:Cytotoxicity, Immunologic; D000939:Epitopes; D006680:HLA Antigens / Q000235:genetics / Q000276:immunology*; D006801:Humans
chemical_list: D000373:Agglutinins; D000939:Epitopes; D006680:HLA Antigens; D003165:Complement System Proteins