title: Distinctions between NK cells and CTL.
mesh_terms: D000818:Animals; D000954:Antigens, Surface / Q000276:immunology; D003165:Complement System Proteins / Q000276:immunology; D003602:Cytotoxicity, Immunologic; D006801:Humans; D007694:Killer Cells, Natural / Q000187:drug effects / Q000276:immunology*; D008222:Lymphokines / Q000494:pharmacology; D013601:T-Lymphocytes / Q000276:immunology*
chemical_list: D000954:Antigens, Surface; D008222:Lymphokines; D003165:Complement System Proteins