title: T-cell-derived helper factor allows Lyt 123 thymocytes to differentiate into cytotoxic T lymphocytes.
mesh_terms: D000818:Animals; D000954:Antigens, Surface; D003602:Cytotoxicity, Immunologic; D007519:Isoantigens; D051379:Mice; D008808:Mice, Inbred CBA; D013601:T-Lymphocytes / Q000276:immunology*
chemical_list: D000954:Antigens, Surface; D007519:Isoantigens