MOHAMMAD ZAHID HASAN ASKRI, ABDUL NASIR. Botulinum Toxin Injection Versus Lateral Internal Sphincterotomy for Chronic Anal Fissure: A Randomized Trial. Journal of Fatima Jinnah Medical University, [S. l.], v. 8, n. 2, 2018. Disponível em: https://jfjmu.com/index.php/ojs/article/view/404. Acesso em: 18 may. 2024.