ATM and urinary bladder cancer: To further explore the relationships between the ATM mutation status and clinical phenotype and mutation load in bladder cancer, we compared the differences in the mutation status in the top 20 genes, tumor sample type (primary/metastatic), sex, race, ethnicity, treatment (single drug/combination) and clinical stage between the ATM-MT and ATM-WT patients in the immunotherapy cohort and TCGA-Bladder cancer cohort.