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. Suppl 2, 2025. DOI: 10.63676/v1rzsg82. Disponível em: https://internationaljournaloftissuerepair.com/index.php/ijtr/article/view/55. Acesso em: 5 nov. 2025.