Blockade of CD40 ligand-CD40 interaction impairs CD4+ T cell-mediated alloreactivity by inhibiting mature donor T cell expansion and function after bone marrow transplantation - Blazar, BR; Taylor, PA; Panoskaltsis-Mortari, A; Buhlman, J; Xu, J; Flavell, RA; Korngold, R; Noelle, R; Vallera, DA (J Immunol, 1997)