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 (Jul. 2023), 143–149. DOI:https://doi.org/10.3126/ajms.v14i7.52851.