Saini, Tarunpreet, and Manisha Salwan. “Immunohistochemical Expression of PD-L1 in Esophageal Carcinoma and Its Correlation With Histopathological Features”. Journal of Pathology of Nepal 14, no. 1 (October 15, 2024): 2138–2142. Accessed October 19, 2024. https://nepjol.info/index.php/JPN/article/view/56916.