1. University of North Carolina School of Medicine Chapel Hill, North Carolina
2. Department of Radiation Oncology University of North Carolina at Chapel Hill Chapel Hill, North Carolina
3. University of North Carolina Lineberger Comprehensive Cancer Center Chapel Hill, North Carolina
4. Department of Health Policy and Management University of North Carolina Gillings School of Global Public Health Chapel Hill, North Carolina
5. Division of Hematology/Oncology, Department of Medicine University of North Carolina at Chapel Hill Chapel Hill, North Carolina
6. University of North Carolina Cecil G. Sheps Center for Health Services Research Chapel Hill, North Carolina