Timing of IFN-β exposure during human dendritic cell maturation and naive Th cell stimulation has contrasting effects on Th1 subset generation: a role for IFN-β-mediated regulation of IL-12 family cytokines and IL-18 in naive Th cell differentiation - Nagai, T; Devergne, O; Mueller, T F; Perkins, D L; van Seventer, J M; van Seventer, G A (J Immunol, 2003)