Reference: 1. Referenced with permission from the NCCN Clinical Practice Guidelines in Oncology (NCCN Guidelines®) for Bladder Cancer V.4.2021. © National Comprehensive Cancer Network, Inc. 2021. NCCN makes no warranties of any kind whatsoever regarding their content, use or application and disclaims any responsibility for their application or use in any way. All rights reserved. Accessed September 2, 2021. To view the most recent and complete version of the guideline, go online to NCCN.org.