Prognostic scores for predicting overall survival in patients with metastatic renal and urothelial cancer undergoing immunotherapy - which one to use? - Walach MT; Burger R; Brumm F; Nitschke K; Wessels F; Nuhn P; Worst TS; von Hardenberg J; Grüne B; Jarczyk J (World journal of urology, 2025)