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Reproducibility and Prognostic Performance of the 1973 and 2004 World Health Organization Classifications for Grade in Non–muscle-invasive Bladder Cancer: A Multicenter Study in 328 Bladder Tumors

Bladder TumorsUrological ResearchSurgical OncologyUrologyUrologic Cancer EpidemiologyCancer EpidemiologyGenitourinary CancerMedicineCancer ManagementCancer PrognosisMulticenter StudyNon–muscle-invasive Bladder CancerOncologyRadiation OncologyPublic HealthCancer Research