title: Involvement of the HLA system in the immune response.
mesh_terms: D000917:Antibody Formation; D002472:Cell Transformation, Viral; D004137:Dinitrochlorobenzene / Q000276:immunology; D006680:HLA Antigens / Q000276:immunology*; D006801:Humans; D007111:Immunity, Cellular; D007114:Immunization; D008211:Lymphocyte Cooperation; D009000:Monocytes / Q000276:immunology; D009975:Orthomyxoviridae; D013601:T-Lymphocytes / Q000276:immunology
chemical_list: D004137:Dinitrochlorobenzene; D006680:HLA Antigens