Fig. 4

CD8⁺ cell infiltration in each tumors of peritoneal allograft models. a Microscopic views of mouse allograft tumors (original magnification × 100). CD8⁺ cells were determined by immunohistochemically. b Number of infiltrated CD8⁺ cells were measured and shown as average count of three non-overlapping tumor areas. Results are expressed as the mean ± SD (n = 6)