1. Turning lymphocytes on and off;DeFranco;Curr Opin Immunol,1998
2. Serial triggering of many T-cell receptors by a few peptide M HC complexes;Valitutti;Nature,1995
3. High antigen density and IL-2 are required for generation of CD4+ effectors secreting Thl rather than Th0 cytokines;Rogers;J Immunol,1998
4. Costimulatory requirements of naive CD4+ T cells: ICAM-1 or B7-1 can costimulate naive CD4+ T cell activation but both are required for optimum response;Dubey;J Immunol,1995
5. The duration of antigenic stimulation determines the fate of naive and effector cells;Iezzi;Immunity,1998