title: World Health Organization and International Society of Urological Pathology classification and two-number grading system of bladder tumors.
authors.forename: R
authors.initials: R
authors.lastname: Oyasu
mesh_terms: D006801:Humans; D009361:Neoplasm Invasiveness; D009626:Terminology as Topic; D001749:Urinary Bladder Neoplasms / Q000145:classification* / Q000473:pathology; D014944:World Health Organization