Al-Lhedan, Fahad, and Amr Mohammed Kurdi. “Lower GI Bleeding and Left Colon Blue Rubber Blebs: Rare Case Report”. Archives of Clinical and Medical Case Reports, vol. 6, no. 6, Dec. 2022, pp. 766-7, https://fortunejournals.org/ojs/index.php/acmcr/article/view/22689.