Chronic Anal Fissure - A Prospective Study. International Journal of Biomedical Research, [S. l.], v. 7, n. 11, p. 803–806, 2016. DOI: 10.7439/ijbr.v7i11.3724. Disponível em: https://www.ssjournals.co.in/index.php/ijbr/article/view/3724. Acesso em: 19 mar. 2026.