1. Department of Radiation Oncology and Molecular Radiation Sciences, Johns Hopkins University School of Medicine, Baltimore, Maryland
2. Stanford Cancer Institute, Department of Radiation Oncology, School of Medicine, Stanford University, Stanford, California
3. Department of Medical Oncology, Johns Hopkins University School of Medicine, Baltimore, Maryland
4. The Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, Maryland
5. The James Buchanan Brady Urological Institute and Department of Urology, Johns Hopkins University School of Medicine, Baltimore, Maryland
6. Sidney Kimmel Cancer Center, Department of Radiation Oncology, Thomas Jefferson University, Philadelphia, Pennsylvania
7. Stanford Cancer Institute, Division of Oncology, Department of Medicine, School of Medicine, Stanford University, Stanford, California