1. Department of Radiation Oncology, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
2. Sheps Center for Health Services Research, 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. The Carolinas Center for Medical Excellence, Cary, North Carolina
6. Division of Hematology-Oncology, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
7. Department of Surgery, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina