Omar Helmy D, Tag El-Sabah M, Sherif Negm M, Armia M. Diagnostic and Pathologic Value of Programmed Death-Ligand 1 Expression in Colon Carcinoma. apjcb [Internet]. 7Dec.2020 [cited 24Apr.2024];5(4):159-66. Available from: http://waocp.com/journal/index.php/apjcb/article/view/585