KACHAVI, S. H.; MALI, P. S.; MANJUNATH, M. B. Comparative study between closed vs open lateral internal sphincterotomy in treatment of chronic anal fissure. International journal of health sciences, [S. l.], v. 6, n. S1, p. 6036–6042, 2022. DOI: 10.53730/ijhs.v6nS1.6293. Disponível em: https://sciencescholar.us/journal/index.php/ijhs/article/view/6293. Acesso em: 12 may. 2026.