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Dröge, W. and Männel, D. and Falk, Werner and Schmidt, H. and Panknin, S. and Dotterer, W. (1983) The optimal activation of cytotoxic T lymphocytes requires metabolically intact stimulator cells not only for the activation of the interleukin 2-producing helper cells. Journal of immunology (Baltimore, Md. : 1950) 131 (1), pp. 520-528.