Cavernous Hemangioma of Sigmoid Colon and Ano-Rectum: A Rare Cause of Haematochezia. Journal of Surgical Sciences, [S. l.], v. 18, n. 2, p. 83–86, 2019. DOI: 10.3329/jss.v18i2.43767. Disponível em: https://banglajol.info/index.php/JSS/article/view/43767. Acesso em: 29 jun. 2026.