Ahmad, S. et al. 2015. 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. 26, 5 (Jan. 2015), 435–437. DOI:https://doi.org/10.5152/tjg.2015.5838.