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a H&E-stained images indicating the distance between epithelial tips in the wound tissues treated with 2PVA2G + 2CHSS microspheres-embedded scaffold or Allevyn® at 3, 7, 14, and 21 days posttreatment (G granulation tissue, D dermis). b Quantitative distance between epithelial tips in the wound tissues treated with 2PVA2G + 2CHSS microspheres-embedded scaffold or Allevyn® at 3, 7, 14, and 21 days posttreatment
