title: Reply by authors.
mesh_terms: D002295:Carcinoma, Transitional Cell / Q000191:economics* / Q000473:pathology*; D006801:Humans; D017404:In Situ Hybridization, Fluorescence / Q000191:economics*; D001749:Urinary Bladder Neoplasms / Q000191:economics* / Q000473:pathology*