Greenwald RJ, Lu P, Halvorson MJ, Zhou X, Chen S, Madden KB, Perrin PJ, Morris SC, Finkelman FD, Peach R, Linsley PS, Urban JF, Gause WC. Effects of blocking B7-1 and B7-2 interactions during a type 2 in vivo immune response. J Immunol. 1997 May 01; 158(9):4088-96.