Killer Factors, Yeastbcl-2 Homologous Antagonist-Killer ProteinMycotoxinsKiller Cells, NaturalWhale, KillerKiller Cells, Lymphokine-ActivatedHormone AntagonistsNatural Killer T-CellsDopamine AntagonistsCytotoxicity, ImmunologicExcitatory Amino Acid AntagonistsNeurokinin-1 Receptor AntagonistsNarcotic AntagonistsHistamine H2 AntagonistsInterleukin 1 Receptor Antagonist ProteinDose-Response Relationship, DrugMuscarinic AntagonistsReceptors, Natural Killer Cell