Figure 4From: Comparisons of three polyethyleneimine-derived nanoparticles as a gene therapy delivery system for renal cell carcinomaTumor volume of RCC-bearing nude mice treated with the FA-PEAs:VHL polyplexes. The tumor size in each group was the mean value of six nude mice. A value of p less than 0.05 was accepted to be significant. *, p < 0.05. All the data were presented as mean ± SEM (standard error of mean), and the statistics were performed with Student's t test.Back to article page