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Histological coronal sections of rat laryngeal specimens showing the acellular scaffolds implanted into the left vocal fold wounds 90 days after surgery, with the right vocal fold wounds as control: (A) H&E (note the absence of the implant in the left vocal fold); (B) Collagen type I; (C) Collagen type III; (D) Elastin; (E) Fibronectin; (F) Hyaluronic acid; (G) Glycosaminoglycans.
