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    Thornton, A. M., Piccirillo, C. A. and Shevach, E. M., Activation requirements for the induction of CD4+CD25+ T cell suppressor function. Eur. J. Immunol. 2004. 34: 366376.
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    Thornton, A. M., Donovan, E. E., Piccirillo, C. A. and Shevach, E. M., Cutting edge: IL-2 is critically required for the in vitro activation of CD4+CD25+ T cell suppressor function. J. Immunol. 2004. 172: 65196523.
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    Malek, T. R., Yu, A., Vincek, V., Scibelli, P. and Kong, L., CD4 regulatory T cells prevent lethal autoimmunity in IL-2Rβ-deficient mice. Implications for the nonredundant function of IL-2. Immunity 2002. 17: 167178.
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    Fisson, S., Darrasse-Jeze, G., Litvinova, E., Septier, F., Klatzmann, D., Liblau, R. and Salomon, B. L., Continuous activation of autoreactive CD4+ CD25+ regulatory T cells in the steady state. J. Exp. Med 2003. 198: 737746.
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    Herman, A. E., Freeman, G. J., Mathis, D. and Benoist, C., CD4+CD25+ T regulatory cells dependent on ICOS promote regulation of effector cells in the prediabetic lesion. J. Exp. Med. 2004. 199: 14791489.
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