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Vibratory function and healing outcomes after small intestinal submucosa biomaterial implantation for chronic vocal fold scar

Vocal fold scar is a major cause of dysphonia, and optimal treatments do not currently exist. Small intestinal submucosa (SIS) is a biomaterial developed for the treatment of a variety of pathologies. The purpose of this study was to investigate the effects of SIS implantation on tissue remodeling in scarred vocal folds using routine staining, immunohistochemistry, and high‐speed videoendoscopy (HSV).