1. Radiation Oncology Service Hunter Holmes McGuire VA Medical Center Richmond Virginia USA
2. Department of Radiation Oncology Virginia Commonwealth University Richmond Virginia USA
3. Department of Health Behavior and Policy Virginia Commonwealth University Richmond Virginia USA
4. Department of Biostatistics Virginia Commonwealth University Richmond Virginia USA
5. Department of Surgery Cedars‐Sinai Medical Center Los Angeles California USA
6. Section of Urology, Durham VA Medical Center Durham North Carolina United States
7. Radiation Oncology Service VA Greater Los Angeles Healthcare System Los Angeles California USA
8. Department of Radiation Oncology University of California Los Angeles Los Angeles California USA
9. Department of Radiation Oncology University of Pennsylvania Philadelphia Pennsylvania USA