Clonal AnergyImmune ToleranceHLA-DR7 AntigenT-LymphocytesDrug ToleranceLymphocyte ActivationReceptors, Antigen, T-CellClone CellsInterleukin-2Mice, TransgenicCD4-Positive T-LymphocytesMice, Inbred BALB CAdaptive ImmunityGlucose Tolerance TestAdaptation, PhysiologicalTransplantation ToleranceSelf ToleranceMice, Inbred C57BLAdaptation, Biological