Statistical analysis
Data are expressed as mean ± SD. Statistical differences were determined
using One-Way ANOVA with Post-Hoc Bonferroni Multiple Comparison test.
P-values <0.05 were considered statistically significant.
Significances were calculated using GraphPad Prism 5 and are defined as
follows: *p<0.05; **p<0.01; ***p<0.001.