1. Department of Radiation Oncology, University of Miami School of Medicine, Miami, FL
2. Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
3. Davidoff Cancer Center, Rabin Medical Center, Petah Tikva, Israel
4. Department of Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, NY
5. Department of Radiation Oncology and Molecular Sciences, Johns Hopkins University School of Medicine, Baltimore, MD