Available datapackage for study 'Real World Evidence of PD-L1, TMB Prevalence and Efficacy of 1st Line Chemotherapy in These High or Low Population for Stage IV Urothelial Cancer'

This study is a multi-center, non-interventional study. Patients' background, treatment
pattern, treatment outcome, efficacy will be collected from medical records in Stage IV
urotherial (UC) patients. Archived patient's formalin-fixed paraffin-embedded (FFPE) primary
tumor samples will be collected to assay PD-L1 expression and next generation sequencer (NGS)
assay for tumor mutation burden (TMB).