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SBMA and PEG hydrogels accelerate healing in pressure ulcers. (A) General observation of the wound healing extent on day 0, 4, 7, 10, and 14 after treatments of PEG and SBMA hydrogels. The unit length in the images was 1 mm. (B) Schematic diagram that mimicking wound healing process in two groups. (C) Statistical summary of the wound healing closure of pressure ulcer in each group. Significant difference is indicated as *p < 0.05, compared to the PEG group, n = 3–6.
