LymphocytesLymphocyte SubsetsT-Lymphocyte SubsetsCD4-CD8 RatioLymphocyte ActivationT-LymphocytesLymphocyte CountLeukocyte CountCD4-Positive T-LymphocytesFlow CytometryAntigens, CD3CD8-Positive T-LymphocytesT-Lymphocytes, Helper-InducerImmunophenotypingAntibodies, MonoclonalT-Lymphocytes, RegulatoryAntigens, CD8Antigens, CD45Killer Cells, NaturalImmunity, CellularB-LymphocytesAntigens, CDSpleenT-Lymphocytes, CytotoxicHLA-DR AntigensReceptors, Antigen, T-Cell, gamma-deltaMice, Inbred BALB CCytotoxicity, ImmunologicPhytohemagglutininsInterleukin-2Cells, CulturedLymphocyte Culture Test, MixedLymphocytes, Tumor-InfiltratingB-Lymphocyte SubsetsAntigens, Differentiation, T-LymphocyteMice, Inbred C57BLConcanavalin ALymph NodesInterferon-gammaAntigens, SurfaceThymus GlandRosette FormationAntigens, CD4MitogensLymphocyte DepletionCell SeparationCytokinesReceptors, Antigen, T-CellLymphocyte TransfusionClone CellsLymphopeniaCD4 Lymphocyte CountLymphocytes, NullLymphoid TissueImmunologic MemoryCell LineCytotoxicity Tests, ImmunologicLymphocyte CooperationImmunoglobulinsReceptors, Interleukin-2Leukocytes, MononuclearReceptors, Antigen, T-Cell, alpha-betaMolecular Sequence DataEpitopesReceptors, Antigen, B-CellMonocytesJurkat CellsHistocompatibility AntigensLymphocyte Function-Associated Antigen-1Antigens, DifferentiationReceptors, Lymphocyte HomingMembrane GlycoproteinsTime FactorsPokeweed MitogensPhenotypeCell DivisionDendritic CellsAntigens, CD19Immunoglobulin GMice, Inbred StrainsHIV-1Interleukin-4Palatine TonsilImmune ToleranceImmunoglobulin MLeukocytesMacrophagesCell DifferentiationAntibody FormationAntigens, CD57Fluorescent Antibody TechniqueLectinsAntigens, CD2ApoptosisCell MovementAntigens, CD28Mice, KnockoutAntigensRNA, MessengerHIV Infections