Saqib Ahmad, et al. “Squamous Cell Carcinoma of the Cecum Developing in a Patient With Long-Standing Ulcerative Colitis and a Coexistent Carcinoid Tumor in the Appendix: A Case Report”. Turkish Journal of Gastroenterology, vol. 26, no. 5, July 2019, pp. 435-7, https://tjg.avesjournals.com/index.php/tjg/article/view/3184.