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Macroscopic evaluation of pressure ulcer closure in experimental groups. (A) At Day 21 after cell sheet transplantation we found complete closure of the defect and onset of hair growth at the site of treated pressure ulcer. Scale bar represents 5 mm. (B) Results of defect relative area measurement as % of initial pressure ulcer at Days 14 and 21. Days 3 and 7 showed no significant difference between groups (*—p < 0.05; **—p < 0.01; ***—p < 0.001).
