Urine Tumor DNA to Stratify the Risk of Recurrence in Patients Treated with Atezolizumab for Bacillus Calmette-Guérin-unresponsive Non-muscle-invasive Bladder Cancer.

St-Laurent MP, Singh P, McConkey DJ, Lucia MS, Koshkin VS, Stratton KL, Bivalacqua TJ, Kassouf W, Porten SP, Bangs R, Plets M, Thompson IM, Meeks JJ, Caruso VM, Ward CT, Mazzarella BC, Phillips KG, Bicocca VT, Levin TG, Lerner SP, Black PC