Figure 4From: Pharmacokinetic properties and antitumor efficacy of the 5-fluorouracil loaded PEG-hydrogel Comparison of relative tumor volumes among treatment groups. * Compared to the untreated control group (n = 6, * p < 0.05, ** p < 0.01). † Compared between 5-FU-treated control and 5-FU-loaded PEG-hydrogel groups (n = 6, † p < 0.05).Back to article page