title: Activation of natural killer (NK) cells and mechanism of their cytotoxic effects.
mesh_terms: D000818:Animals; D003602:Cytotoxicity, Immunologic; D006801:Humans; D007694:Killer Cells, Natural / Q000276:immunology*; D008213:Lymphocyte Activation; D011948:Receptors, Antigen, T-Cell / Q000276:immunology
chemical_list: D011948:Receptors, Antigen, T-Cell