[1]Department of Urology Institute of Urology Second Hospital of Lanzhou University Tianshui Gansu 730000;
[2]Department of Urology Key Laboratory of Urological Diseases in Gansu Province Tianshui Gansu 730000;
[3]Department of Urology Gansu Nephro-Urological Clinical Center Tianshui Gansu 7300000;
Bladder urothelial carcinoma; PD-1; PDL-1; Inhibitor;