highly significantP <0.001
The semi-quantitative analysis of the immunohistochemical expression levels showed a highly significant increase at 7 days, 14 days and 21 days, respectively ( P <0.001) ( Table 2 ).
The semi-quantitative analysis of the immunohistochemical expression levels showed a highly significant increase at 7 days, 14 days and 21 days, respectively ( P <0.001) ( Table 2 ).