Figure 3: Statistic graphs of the infiltrated immune cells.

Data were represented as mean ± SD of six different microscopic fields from three experiments ((a) P < 0.05 versus grade 2 or grade 1; (b) P < 0.05 versus grade 1).

Data were represented as mean ± SD of six different microscopic fields from three experiments ((a) P < 0.05 versus grade 2 or grade 1; (b) P < 0.05 versus grade 1).