SHAH, B.; SHARMA, U. .; PATEL, R.; MAHARAUL, H. H. Management of acute anal fissure with open and closed internal sphincterotomy. International journal of health sciences, [S. l.], v. 6, n. S4, p. 726–733, 2022. DOI: 10.53730/ijhs.v6nS4.5661. Disponível em: https://sciencescholar.us/journal/index.php/ijhs/article/view/5661. Acesso em: 19 may. 2025.