Lateral Anal Sphincterotomy for Chronic Anal Fissures- A Comparison of Outcomes and Complications under Local Anaesthesia Versus Spinal Anaesthesia. Medical Forum Monthly, [S. l.], v. 32, n. 10, 2021. Disponível em: https://medicalforummonthly.com/index.php/mfm/article/view/1463.. Acesso em: 16 apr. 2026.