Cytotoxicity Tests, ImmunologicToxicity Tests, AcuteCell SurvivalMaterials TestingLymphocytesCell LineCytotoxicity, ImmunologicAntibody-Dependent Cell CytotoxicityKiller Cells, NaturalCell Line, TumorDrug Screening Assays, AntitumorCytotoxinsAntineoplastic AgentsTumor Cells, CulturedApoptosisDrug SynergismCell DeathNatural Cytotoxicity Triggering Receptor 1Cells, CulturedInhibitory Concentration 50Dose-Response Relationship, DrugPerforinNeoplasms, Connective TissueFoxesMice, Inbred C3HRabbitsLymph NodesMice, Inbred StrainsSpecies Specificity