Wound contraction in different wound dressings groups. Wound contraction in untreated-control, antibiotic-treated, bacteriophage-treated, and PEG-based groups at different time points post injury. Data are expressed as means ± SD; n = 6. Statistically significant differences from control are marked by asterisks (*p < 0.05, **p < 0.01, ***p < 0.001; repeated measures ANOVA with Tukey's multiple comparisons post-hoc test).