Santanu Nandy, Vandana Maroo, and Gopinath Barui. 2023. “Immunohistochemical Analysis of Cytokeratin 7 and 20 Expression in Colorectal Carcinoma and Its Correlation With Histopathological Grading of Tumour”. Asian Journal of Medical Sciences 14 (7):143-49. https://www.nepjol.info/index.php/AJMS/article/view/52851.