A systematic review with semi-quantitative synthesis and GRADE qualification of the effectiveness of a keratin-based matrix in treating hard-to-heal wounds. International Journal of Tissue Repair, [S. l.], v. 1, n. 1, 2025. DOI: 10.63676/hnk40685. Disponível em: https://internationaljournaloftissuerepair.com/index.php/ijtr/article/view/24. Acesso em: 7 nov. 2025.