Santhirasekaram, A., S. Latif, E. Arooj, K. Rostami, and S. Ishaq. “What Is the Best Algorithm for Acute Lower Gastrointestinal Haemorrhage Investigation?”. Gastroenterology and Hepatology from Bed to Bench, vol. 10, no. 1, Feb. 2017, pp. 66-69, https://journals.sbmu.ac.ir/ghfbb/index.php/ghfbb/article/view/1000.