Leukemia, Large Granular LymphocyticLymphocytesLymphocytosisKiller Cells, NaturalFelty SyndromeLeukemia, T-CellCytotoxicity, ImmunologicLeukemia, LymphoidAntigens, CD57Lymphocyte ActivationAntigens, SurfaceAntigens, CD3Lymphoproliferative DisordersAntigens, Differentiation, T-LymphocyteInterleukin-2Leukemia, Prolymphocytic, T-CellAntigens, CD56T-LymphocytesRed-Cell Aplasia, PureImmunophenotypingLymphocyte SubsetsCell SeparationAntibody-Dependent Cell CytotoxicityCytoplasmic GranulesAntibodies, MonoclonalClone CellsNaphthol AS D EsteraseGene Rearrangement, beta-Chain T-Cell Antigen ReceptorFlow CytometryKiller Cells, Lymphokine-ActivatedReceptors, Antigen, T-CellReceptors, FcLeukocyte CountLymphocyte CountGene Rearrangement, gamma-Chain T-Cell Antigen ReceptorAgranulocytosisGene Rearrangement, T-LymphocyteReceptors, Interleukin-2Interleukin-15Receptors, IgGSpleenReceptors, ImmunologicRosette FormationPhenotypeRats, Inbred F344T-Lymphocytes, CytotoxicAntigens, CDCat DiseasesDeciduaNeutropeniaT-Lymphocyte Subsets