Lymphocyte SubsetsLymphocytesAntibodiesAntigensLymphocyte ActivationAntibodies, MonoclonalAntibody SpecificityLymphocyte CountT-LymphocytesT-Lymphocyte SubsetsAntigens, SurfaceAntibodies, ViralCD4-CD8 RatioAntigens, BacterialAntibodies, BacterialB-LymphocytesFlow CytometryAntigens, NeoplasmAntibody FormationAntigens, CDAntigens, ViralLeukocyte CountFluorescent Antibody TechniqueCD4-Positive T-LymphocytesImmunophenotypingKiller Cells, NaturalEpitopesAntigens, CD3SpleenCD8-Positive T-LymphocytesAntibodies, NeutralizingMice, Inbred BALB CAntigens, CD45B-Lymphocyte SubsetsImmunoglobulin GAntigens, CD8Cells, CulturedAntibody AffinityImmunoglobulin MMolecular Sequence DataHLA-DR AntigensT-Lymphocytes, Helper-InducerBinding Sites, AntibodyAntibodies, Anti-IdiotypicImmunity, CellularCross ReactionsAntigens, CD4Mice, Inbred C57BLAntigens, ProtozoanT-Lymphocytes, CytotoxicCytotoxicity, ImmunologicHLA AntigensReceptors, Antigen, B-CellInterleukin-2Receptors, Antigen, T-CellLymph NodesHistocompatibility AntigensCell LineAutoantibodiesAmino Acid SequenceAntigen-Antibody ReactionsAntibodies, ProtozoanPhytohemagglutininsInterferon-gammaImmunoenzyme TechniquesEnzyme-Linked Immunosorbent AssayT-Lymphocytes, RegulatoryAntigens, FungalAntigens, Differentiation, T-LymphocyteHistocompatibility Antigens Class IIImmunoglobulinsAntigens, CD19HIV AntibodiesH-2 AntigensAntigens, DifferentiationAntigens, Polyomavirus TransformingThymus GlandAntibodies, AntinuclearCytokinesAntigens, HelminthTime FactorsCell SeparationLymphocytes, Tumor-InfiltratingAntibodies, NeoplasmConcanavalin AImmune SeraImmunizationReceptors, Antigen, T-Cell, gamma-deltaLymphocyte Culture Test, MixedImmunoglobulin ARosette FormationRecombinant ProteinsAntigen-Antibody ComplexLymphopeniaCarcinoembryonic AntigenMice, Inbred StrainsMitogensImmunohistochemistryLymphoid TissueImmunologic Memory