title: In vivo and in vitro requirements for T-cell activation: concordance and contrasts.
mesh_terms: D000818:Animals; D000954:Antigens, Surface / Q000276:immunology; D003602:Cytotoxicity, Immunologic; D007111:Immunity, Cellular; D066298:In Vitro Techniques; D008213:Lymphocyte Activation; D013601:T-Lymphocytes / Q000276:immunology*; D013602:T-Lymphocytes, Cytotoxic / Q000276:immunology; D006377:T-Lymphocytes, Helper-Inducer / Q000276:immunology
chemical_list: D000954:Antigens, Surface