Antineoplastic Agents/*therapeutic use Chemotherapy Adjuvant/*statistics & numerical data *Cystectomy Global Health Guideline Adherence/statistics & numerical data Humans Models Statistical Neoadjuvant Therapy/*statistics & numerical data Neoplasm Invasiveness Practice Guidelines as Topic Practice Patterns Physicians'/*statistics & numerical data Urinary Bladder Neoplasms/*drug therapy/pathology/surgery