Affiliations: Dr. Parikh is an attending physician at the San Antonio Cancer Center, San Antonio, TX. Ms. Clark is senior director, health economics, and Mr. Patel is senior vice president, government affairs and market access, both at ViewRay Inc., Oakwood Village, OH. Ms. Kafka-Peterson is a registered nurse, Ms. Zaide is a physician assistant, Dr. Ma is a PGY4 resident physician, Dr. Steinberg is a professor and chair of radiation oncology, Dr. Cao is a professor of medical physics, Dr. Raldow is assistant professor of radiation oncology, Dr. Lamb is an associate professor of medical physics, and Dr. Kishan is an associate professor of radiation oncology and vice chair of clinical and translational research, all in the Department of Radiation Oncology, University of California Los Angeles. Disclosures: Dr. Parikh is a consultant for Radiopharm Theranostics. Ms. Clark is an employee and shareholder of ViewRay Inc. Mr. Patel is an employee and shareholder of ViewRay Inc. Dr. Steinberg is on the strategic advisory board for ViewRay Inc. Dr. Raldow is the local principal investigator for the SMART trial sponsored by ViewRay Inc., and serves as a consultant, product tester, and member of the Gastrointestinal Consortium. Dr. Lamb has received consulting fees from ViewRay Inc. Dr. Kishan has received consulting fees and research support from ViewRay Inc., grant support from the Prostate Cancer Foundation and the American Society for Radiation Oncology, and consulting fees from Varian. This study was supported by grant P50CA09213 from the Prostate Cancer National Institutes of Health (NIH) Specialized Programs of Research Excellence (Dr. Kishan) and a grant from ViewRay. The research data supporting the findings of this study are stored in an institutional repository and will be shared upon reasonable request to the corresponding author, Dr. Kishan (AUKishan@mednet.ucla.edu).

John Peterson, MD

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