title: Role of natural killer cells in host defense against cancer metastasis.
mesh_terms: D000818:Animals; D002460:Cell Line; D002999:Clone Cells; D003602:Cytotoxicity, Immunologic; D007113:Immunity, Innate; D007694:Killer Cells, Natural / Q000276:immunology*; D008262:Macrophage Activation; D051379:Mice; D008809:Mice, Inbred C3H; D008810:Mice, Inbred C57BL; D008819:Mice, Nude; D009362:Neoplasm Metastasis; D009368:Neoplasm Transplantation; D009369:Neoplasms / Q000276:immunology*; D011425:Propionibacterium acnes / Q000276:immunology*