Hybrid grading systems improve progression risk stratification in non-invasive papillary urothelial carcinoma and support a histomorphological continuum of disease progression
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Objective: Histological grading is a key predictor of progression in non-muscle-invasive bladder cancer (NMIBC). The WHO 1973 three-tier system is limited by heterogeneity within the G2 category, whereas the WHO 2004/2016 binary ... ...
