MÉROLA (H), Luis. Treatment of extra-sphincteric perianal fistulas. Cirugía del Uruguay, [S. l.], v. 33, n. 5-6, p. 412–414, 2020. Disponível em: https://replica-revista.scu.org.uy/index.php/cir_urug/article/view/1668. Acesso em: 14 jun. 2026.