title: Target-effector interaction in the natural killer (NK) cell system. II. The isolation of NK cells and studies on the mechanism of killing.
mesh_terms: D000818:Animals; D001665:Binding Sites; D002469:Cell Separation; D003602:Cytotoxicity, Immunologic; D007113:Immunity, Innate; D051379:Mice; D008808:Mice, Inbred CBA; D008819:Mice, Nude; D013154:Spleen / Q000648:ultrastructure; D013997:Time Factors