title: An overview of the HLA system: clinical aspects.
mesh_terms: D000367:Age Factors; D001803:Blood Transfusion; D016039:Corneal Transplantation; D006680:HLA Antigens; D006650:Histocompatibility Testing; D006801:Humans; D007111:Immunity, Cellular; D016030:Kidney Transplantation; D008214:Lymphocytes / Q000276:immunology; D012737:Sex Factors; D014181:Transplantation Immunology
chemical_list: D006680:HLA Antigens