Ali, Z. M. ., R. T. . Yaqo, and A. H. . Raziq. “Programmed Death Ligand I (PDL-1) Expression in Renal Cell Carcinoma: A Retrospective Cohort Study”. AMJ (Advanced Medical Journal) , vol. 9, no. 2, June 2024, pp. 173-81, doi:10.56056/amj.2024.270.