*2.9. Statistical Analysis*

Statistical significance was analyzed using GraphPad Prism 6 (GraphPad Software Inc.), and \*, *p* ≤ 0.05; \*\*, *p* ≤ 0.01; \*\*\*, *p* ≤ 0.001 were considered statistically significant. For paired samples, a paired *t* test was performed; otherwise, an unpaired Student *t* test was used. Differences in group survival were analyzed using Log-rank (Mantel-Cox) test. Error bars represent means ± standard deviations (SD).
