title: Repeat HLA-DR mismatches in second transplants.
mesh_terms: D006084:Graft Rejection; D006680:HLA Antigens; D006650:Histocompatibility Testing; D006801:Humans; D007668:Kidney / Q000276:immunology; D016030:Kidney Transplantation; D014184:Transplantation, Homologous
chemical_list: D006680:HLA Antigens