Early Complications of Open versus Closed Internal Anal Sphincterotomy in the Management of Chronic Anal Fissure. Medical Forum Monthly, [S. l.], v. 32, n. 1, 2024. Disponível em: https://medicalforummonthly.com/index.php/mfm/article/view/2138.. Acesso em: 26 dec. 2025.