title: Natural killing can be independent of interferon generated in vitro.
mesh_terms: D002460:Cell Line; D002478:Cells, Cultured; D006801:Humans; D007372:Interferons / Q000276:immunology* / Q000378:metabolism; D007694:Killer Cells, Natural / Q000276:immunology*; D008214:Lymphocytes / Q000378:metabolism; D009374:Neoplasms, Experimental / Q000276:immunology
chemical_list: D007372:Interferons