Tuba Devrim, et al. “Rectal Pyogenic Granulomas: An Uncommon Cause of Gastrointestinal Bleeding”. Turkish Journal of Gastroenterology, vol. 29, no. 1, July 2019, pp. 126-7, https://turkjgastroenterol.avesjournals.com/index.php/tjg/article/view/3499.