highly significantP values < 0.001
A P value < 0.05 was deemed significant (*) and a P value < 0.01 was considered highly significant (**); P values < 0.001 and < 0.0001 were also designated on graphs as *** and ****, respectively.
A P value < 0.05 was deemed significant (*) and a P value < 0.01 was considered highly significant (**); P values < 0.001 and < 0.0001 were also designated on graphs as *** and ****, respectively.