1. Department of Radiation Oncology, University of Texas Health Science Center at San Antonio, San Antonio, TX, USA;
2. SWOG Statistical Center; Fred Hutchinson Cancer Research Center, Seattle, WA, USA;
3. Department of Radiology, Memorial Sloan Kettering Cancer Center, New York, NY, USA;
4. Department of Radiation Oncology, MD Anderson Cancer Center, Houston, TX, USA;
5. Department of Medicine, Washington University School of Medicine, St. Louis, MO, USA;
6. Division of Blood Disorders, Rutgers Cancer Institute, New Brunswick, NJ, USA;
7. Department of Pathology, Cleveland Clinic, Cleveland, OH, USA;
8. Department of Laboratory Medicine and Pathology, Mayo Clinic, Scottsdale, AZ, USA;
9. Department of Radiology, The Ohio State University, Columbus, OH, USA;
10. Department of Medicine, Weill Cornell Medical Center, New York, NY, USA;
11. Department of Medicine, University of Chicago, Chicago, IL, USA;
12. Department of Radiation Oncology, Wilmot Cancer Institute, University of Rochester, Rochester, NY, USA;
13. Department of Medicine, Wilmot Cancer Institute, University of Rochester, Rochester, NY, USA