Fig. 1.
The development of resistance against lung tumor retention of NK sensitive MADB106 tumor cells in male and female Fischer 344 rats from prepubescence (≤ 40 days) through adulthood. These animals are the saline injected (control) groups seen in Fig. 2. The prepubescent animals retained a significantly greater percentage of MADB106 cells versus all other age groups, p < 0.05; error bars are SEM.