Administration Intravesical Antineoplastic Agents/*administration & dosage Antineoplastic Combined Chemotherapy Protocols/administration & dosage Carcinoma Transitional Cell/*drug therapy/mortality Cyclophosphamide/administration & dosage Doxorubicin/administration & dosage/analogs & derivatives Epirubicin/administration & dosage Humans Melphalan/administration & dosage Network Meta-Analysis Semustine/administration & dosage Treatment Outcome Urinary Bladder Neoplasms/*drug therapy/mortality chemotherapy drug therapy single instillation systematic review urinary bladder neoplasm