Citation: Dk. Sojka et al., B7-2 expression on tumor cells is important for the acquisition of cytotoxic T lymphocyte activity by spleen cells from low-dose-melphalan-treated MOPC-315 tumor bearers via a mechanism that requires either B7-1 or B7-2 expression on host antigen-presenting cells, CANCER IMMU, 49(1), 2000, pp. 10-22