Sahu, Subrata Kumar, Ipseet Mishra, Sudip Haldar, and Samir Bhattacharryya, trans. “Primary Squamous Cell Carcinoma of the Sigmoid Colon”. Indian Journal of Case Reports 5, no. 5 (September 27, 2019): 461–463. Accessed December 5, 2025. https://mansapublishers.com/ijcr/article/view/1819.