LymphocytesLymphocyte SubsetsT-LymphocytesLymphocyte ActivationLeukocyte CountRosette FormationB-LymphocytesLymphocyte CountFlow CytometryPhytohemagglutininsLeukocytes, MononuclearT-Lymphocyte SubsetsLymphocytes, NullCell SeparationImmune Adherence ReactionKiller Cells, NaturalReceptors, Antigen, B-CellCells, CulturedAntibodies, MonoclonalConcanavalin ACD4-CD8 RatioCD4-Positive T-LymphocytesMonocytesMitogensSpleenPokeweed MitogensImmunophenotypingAntigens, CDThymus GlandT-Lymphocytes, RegulatoryT-Lymphocytes, Helper-InducerLymphocyte Culture Test, MixedCytotoxicity, ImmunologicLymphocyte CooperationCD8-Positive T-LymphocytesThymopentinAntigens, CD45Lymph NodesAntigens, Differentiation, T-LymphocyteImmunoglobulin Fc FragmentsImmunoglobulin MLymphopeniaImmunity, CellularInterleukin-2Antigens, CD3Palatine TonsilAntigens, SurfaceLeukocytesImmunoglobulin GImmunoglobulinsLectinsPeripheral NervesInterferon-gammaCytokinesReceptors, FcMice, Inbred C57BLLeukemia, LymphoidB-Lymphocyte SubsetsT-Lymphocytes, CytotoxicAntilymphocyte SerumAntigens, CD8Antibody FormationMice, Inbred BALB CAgammaglobulinemiaTime FactorsLymphoid TissueImmunoglobulin DFluorescent Antibody TechniqueCytotoxicity Tests, ImmunologicAntigens, CD4Hemolytic Plaque TechniqueCell LineImmunologic Deficiency SyndromesCell DivisionClone CellsPhenotypeHistocompatibility AntigensHLA-DR AntigensDose-Response Relationship, ImmunologicReceptors, Interleukin-2MacrophagesAntigens, DifferentiationImmune SystemMice, Inbred StrainsThymectomyAntigen-Antibody ReactionsSheepImmunologic TechniquesReceptors, Antigen, T-Cell, gamma-deltaReceptors, Antigen, T-Cell, alpha-betaCell CountHistocompatibility Antigens Class IICell DifferentiationLymphocyte TransfusionPeripheral Nervous SystemRNA, MessengerBlood CellsErythrocytesImmune ToleranceCD4 Lymphocyte Count