SPDL1 and renal pelvis/ureter urothelial carcinoma: Higher baseline sPD-L1 correlated with shorter OS after surgical resection in patients with gastric cancer [49, 224], colorectal cancer [226, 227], hepatocellular carcinoma [225], renal cell carcinoma [72], soft tissue sarcoma [229], and upper tract urothelial carcinoma [89].