Leukemia, Large Granular LymphocyticLeukemia, LymphoidLeukemia, T-CellLymphocytosisRed-Cell Aplasia, PureKiller Cells, NaturalLymphocytesRats, Inbred F344LeukemiaFlow CytometryLymphocyte ActivationLeukemia, Myeloid, AcuteCytotoxicity, ImmunologicLymphoproliferative DisordersFelty SyndromeT-LymphocytesAntigens, CD3Leukemia, ExperimentalLymphocyte SubsetsAntigens, SurfaceLeukemia, Lymphocytic, Chronic, B-CellAntigens, CD57