title: Recognition of "early" bladder cancer and premalignant epithelial changes.
mesh_terms: D004848:Epithelium / Q000473:pathology; D006801:Humans; D011230:Precancerous Conditions / Q000175:diagnosis* / Q000473:pathology / Q000652:urine; D001749:Urinary Bladder Neoplasms / Q000175:diagnosis* / Q000473:pathology / Q000652:urine