title: Biological function of HLA.
mesh_terms: D000818:Animals; D003602:Cytotoxicity, Immunologic; D000939:Epitopes; D005802:Genes, MHC Class II; D006084:Graft Rejection; D006680:HLA Antigens; D006648:Histocompatibility; D006801:Humans; D007694:Killer Cells, Natural; D008211:Lymphocyte Cooperation; D013601:T-Lymphocytes / Q000276:immunology
chemical_list: D000939:Epitopes; D006680:HLA Antigens