Sabhita Shabir Shaikh, et al. “Unmasking the Hidden Culprits: Investigating the Diverse Causes of Lower Gastrointestinal Bleeding in a Younger Cohort”. Pakistan Journal of Medical Research, vol. 63, no. 2, Aug. 2024, pp. 69-74, https://www.pjmr.org.pk/index.php/pjmr/article/view/575.