Reply to Xiaoshuai Gao, Guo Chen, and Xin Wei's Letter to the Editor re: Keiichiro Mori, Mohammad Abufaraj, Hadi Mostafaei, et al. The Predictive Value of Programmed Death Ligand 1 in Patients with Metastatic Renal Cell Carcinoma Treated with Immune-checkpoint Inhibitors: A Systematic Review and Meta-analysis. Eur Urol 2021;79:783-92
1 Department of Urology, Comprehensive Cancer Center, Medical University of Vienna, Vienna, Austria; Department of Urology, The Jikei University School of Medicine, Tokyo, Japan.
2 Clinical Division of Oncology, Department of Medicine I and Comprehensive Cancer Center, Medical University of Vienna, Vienna, Austria.
3 Department of Urology, The Jikei University School of Medicine, Tokyo, Japan.
4 Department of Urology, Comprehensive Cancer Center, Medical University of Vienna, Vienna, Austria.
5 Department of Urology, Comprehensive Cancer Center, Medical University of Vienna, Vienna, Austria. Electronic address: shahrokh.shariat@meduniwien.ac.at.